CREATE TABLE table_72560 ("Rank" TEXT, "Common of" TEXT, "Population" FLOAT, "Area  ( km 2  ) " TEXT, "Density  ( inhabitants/km 2  ) " TEXT, "Altitude  ( mslm ) " FLOAT)

What rank is the common with an area of 47.3 km^2?
SELECT "Rank" FROM table_72560 WHERE "Area (km 2 )" = '47.3'
SELECT "Rank" FROM "table_72560" WHERE "Area (km 2 )" = '47.3'