Aaron is on his school's wrestling team. He and his teammates want to paint the school's mascot on the wrestling mats. The T-shirts sold at Aaron's school show the mascot, a bulldog, with a nose that is 1.2 cm long and a front paw that measures 4.5 cm across. If Aaron and his teammates plan to paint an enlarged image of the bulldog with a nose that is 6 cm, how long should they make the front paw?