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The correct answer is D
Find the third proportional to 13 and 39?
What is the fourth proportional to 5, 9, 25?
‘x’ varies directly as ‘y’. If at x = 24 the value of ‘y’ is 25% more than ‘x’, then find the value of ‘x’ when ‘y’ = 55.
...Three positive numbers are in the ratio 2:3:4. The sum of their squares is 2349. What is the average of the largest and the second largest number?
What is the third proportional to 9 and 36?