Question

In a film, the 555-foot-tall Washington Monument casts a 100-foot-long shadow...whereas the main character in the film casts a 4-foot-long shadow nearby. This is considered to be a film "goof" because the proportion is not realistic. So how tall would the main character need to be according to the given measurements? (Round your answer to the nearest whole FOOT followed by the unit abbreviation, like this example: 12 ft.)