Question

6. Find the third proportional to 9 and 15.
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Answer 1

Explanation:

9:15::15: X

Product of means term = product of outer

term

9×X= 15×15

9X= 225

X= 225/9

X=25

check answer

Put the value of X

9:15::15: 25

Product of means term= Product of outer term

9×25= 15×15

225= 225