user: Question: What is the Flattening ratio associated with the Equatorial diameter of 12,756.28km?
Columns: ['Body', 'Equatorial diameter', 'Polar diameter', 'Equatorial bulge', 'Flattening ratio']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Earth', '12,756.28km', '12,713.56km', '42.72km', '1:298.2575']
SQL:

assistant: SELECT "Flattening ratio" FROM "Table" WHERE "Equatorial diameter" = '12,756.28km';