If `a prop b, b prop c` and `c prop a`, then find the product of three non-zero variation constants.

If x prop y, y prop z and z prop x, then find the product of three non-zero variation constant.

If x^2 prop yz ,y^2 prop zx and z^2 prop xy , then find the product of three variation constant

If a prop b, then

If x prop y, y prop z and z prop x , find the product of three variation constant.

If (y-z)prop1/x, (z-x)prop and (x-y)prop1/z, then find the sum of three variation constants .

If x prop yz and y prop zx, then prove that z is a non- zero variation constant.

If a prop1/b , then

If a prop b, b prop c, c prop d and d prop a , where the variation constants are k, l, m, n respectively then___

If x^2 prop yz, y^2 prop zx and z^2 prop xy , then the rlation among the three constants of variation is

If (b - c) prop bc, (c - a) prop ca and (a - b) prop ab where k,l,m are the respective variation constants, then___