Question

if 9,×,×,49 arein proportion ​

Answer 1

Answer:

Step-by-step explanation:

9:x::x:49

or,9/x=x/49

or,x^=49*9

or,x^=441

or,x= √441=21

so x is 21

Answer 2

Answer:value of x is 21

Step-by-step explanation:

If 9, x, x, 49 are in proportion

Then 9/x = x/49

X^2 =9x49

So x=3x7=21