Pls Help! Which one is suppose to go in the box?

Find the missing dimension! need asap! tiny square is a =3025 in ²

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,