1. The problem statement, all variables and given/known data A 54.0 kg cheerleader uses an oil-filled hydraulic lift to hold four 130 kg football players at a height of 1.40 m. If her piston is 18.0 cm in diameter, what is the diameter of the football players' piston? 2. Relevant equations 3. The attempt at a solution 54 /18^2 = 520/x^2 x= 55.85696 cm What am i doing wrong?