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What is the ratio between the fourth proportional of 3, 4, 9 and the mean proportional between 2 and 98?

What is the ratio between the fourth proportional of 3, 4, 9 and the mean proportional between 2 and 98? Correct Answer 6 : 7

¾ = 9/fourth proportional

⇒ fourth proportional = 12

Mean proportional = √2 × 98 = 14

Ratio between the fourth proportional of 3, 4, 9 and the mean proportional between 2 and 98 = 6 : 7

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