The safe load, L. of a wooden beam supported at both ends varies jointly as the width, w, and the square of the depth, d, and inversely as the length, L. A wooden beam 2 in. wide, 6 in. deep, and 7 ft long holds up 31969 lb. What load would a beam 5 in. wide, 8 in. deep, and 13 ft. long, of the same material, support? Round your answer to the nearest integer if necessary. Answer Keypad Keyboard Shortcut