Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the Flattening ratio associated with the Equatorial diameter of 12,756.28km?

### Inputs:
table_name: table, columns: ['Body', 'Equatorial diameter', 'Polar diameter', 'Equatorial bulge', 'Flattening ratio']

### Response:
SELECT Flattening ratio FROM table WHERE Equatorial diameter = 12,756.28km