If 2, x, 8, and 16 in the given order are in proportion, find the value of x.
If 9, x, x and 25 are in proportion, find the value of x.
If x and y are inversely proportional, find the values of x1,x2,y1 and y2 in the table given below :
x8x116x280yy1452y2
If 8, x, 48, and 18 are in proportion then the value of x is ___