Answered

Which pair of ratios form a proportion?


3 : 4 and 4 : 5


10 : 12 and 16 : 18


7 : 10 and 10 : 14


5 : 8 and 20 : 32

Verified Answer :

5:8 and 20:32 would be a proportion.

Easy way to find this:
Set up the proportion as a fraction.
Use the cross product property. Multiply the diagonals and if the products of the diagonals are the same, then they are proportional.

bcalle

5:8 and 20:32
If you multiply both 5 and 8 by 4 you get 20:32

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