A famous boxer has a mass of M=71.1 kg and needs to weigh in for a fight to make sure that he still qualifies for a particular weight class. He knows, however, that he still needs to lose m=4.74 g of mass (not weight!) in order to qualify. Luckily for him, he knows physics. This boxer knows that he can use his fame to influence where the weigh-in (which will be televised, so he doesn't want to embarrass himself) will take place. He knows that the scale used for these weigh-ins is calibrated to the gravitational field at sea-level. How high (in meters) above sea-level should he petition the weigh-in to take place so that he will just barely qualify for his desired weight class