Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_15055594_6 ( fall_09 INTEGER, fall_07 VARCHAR )

### Question ###
What is the number of students in Fall 09 from the state that had 3940 in Fall 07?

### Accurate SQL ###

SELECT MAX(fall_09) FROM table_15055594_6 WHERE fall_07 = 3940