physics

what formula do i need in order to solve this

a force of 230 N applied on a hydraulic lift raises an automobile weighing 6500 N. If the applied force is exerted on a 7.0 m^2 piston, what is the area of the piston beneath the automobile?

can someone show me how to do this in steps or tell me what formula to use
thanks:)

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  1. pressure is the same on the little piston and the big piston
    so
    230/7 = pressure = 32.86 N/m^2
    32.86 * area = 6500
    solve for area

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  2. .0050 m^2
    thnks

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