Question

The ratio of the third proportional to 4 and 6 and
the mean proportional between 9 and 25 is -

Answer 1

Answer:

Let the third proportional to 12 and 30 be x.

Then, 12 : 30 :: 30 : x

⇔ 12x = 30 × 30

⇔x=12(30×30)=75

∴ Third proportional to 12 and 30 = 75.

Mean proportional between 9 and 25=9×25=15

∴ Required ratio = 75 : 15 = 5 : 1.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

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