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Home > Algebra calculators > Sub-Duplicate ratio example
Ratio and Proportion - 8. Sub-Duplicate ratio example ( Enter your problem )
( Enter your problem )
  1. Examples
 		Other related methods
  1. If `a:b:c=2:3:5` then find value of `(a^2+b^2+c^2)/(ab+bc+ca)`
  2. If `a:b=2:3,b:c=4:5` then find `a:b:c`
  3. If `a/b=c/d=e/f` then prove that `(2a+3c-4e)/(2b+3d-4f)=(5a-4c+3e)/(5b-4d+3f)`
  4. If `x/(y+z)=y/(z+x)=z/(x+y)` then prove the value of each ratio is `1/2` or `-1`
  5. Geometric Mean
  6. Duplicate ratio
  7. Triplicate ratio
  8. Sub-Duplicate ratio
  9. Sub-Triplicate ratio
  10. Compounded ratio
  11. Mean proportional
  12. Third proportional
  13. Fourth proportional
  14. Compare ratios
7. Triplicate ratio
(Previous method)		9. Sub-Triplicate ratio
(Next method)

1. Examples


1. Find Sub-Duplicate ratio of `16:25`

Solution:
For ratio `a:b`, `sqrt(a):sqrt(b)` is called sub duplicate ratio.


`:.` sub duplicate ratio of `16 : 25` is `sqrt(16) : sqrt(25) = 4:5`

2. Find Sub-Duplicate ratio of `9:49`

Solution:
For ratio `a:b`, `sqrt(a):sqrt(b)` is called sub duplicate ratio.


`:.` sub duplicate ratio of `9 : 49` is `sqrt(9) : sqrt(49) = 3:7`



This material is intended as a summary. Use your textbook for detail explanation.
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7. Triplicate ratio
(Previous method)		9. Sub-Triplicate ratio
(Next method)


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