Question

Find the third proportional to 16 and 20.

Answer 1

Step-by-step explanation:

Then 16, 20, x are in proportion. Therefore, the third proportional of 16 and 20 is 25.

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Answer 2

Answer:

Let the third proportional of 16 and 20 be x.

Then 16,20,x are in proportion.

This means 16:20=20:x

So, 16×x=20×20

x=   20×20/16  =25

Therefore, the third proportional of 16 and 20 is 25.

Step-by-step explanation: