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_31048 ( "City/Municipality" text, "Population (2010)" real, "Area (km\u00b2)" text, "Pop. density (per km\u00b2)" text, "Income Classification" text )

### Question ###
When 82.74 is the area in kilometers squared what is the pop.density (per km2)?

### Accurate SQL ###

SELECT "Pop. density (per km\u00b2)" FROM table_31048 WHERE "Area (km\u00b2)" = '82.74'