As shown in the figure below, Tony has determined that he must ride his skateboard down a long ramp to be able to jump a shorter ramp with enough time to complete a new trick. First, he needs to determine the dimensions of both the shorter and longer ramps. Tony is on his skateboard at point K, 20 feet above the ground. He then notes that the vertical height HJ of the shorter ramp is 6 feet above the ground, and the length of the shorter ramp GJ is 9 feet. Approximately how many feet long is the longer ramp? (Note: In △FKG and △HJG, ∠FGK is congruent to ∠HGJ.)


