Name the world rank for market value 17.2
CREATE TABLE table_73086 (
    "World Rank" real,
    "Company" text,
    "Industry" text,
    "Revenue (billion $)" text,
    "Profits (billion $)" text,
    "Assets (billion $)" text,
    "Market Value (billion $)" text
)
SELECT "World Rank" FROM table_73086 WHERE "Market Value (billion $)" = '17.2'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Name the world rank for market value 17.2 ### Input: CREATE TABLE table_73086 (
    "World Rank" real,
    "Company" text,
    "Industry" text,
    "Revenue (billion $)" text,
    "Profits (billion $)" text,
    "Assets (billion $)" text,
    "Market Value (billion $)" text
) ### Response: SELECT "World Rank" FROM table_73086 WHERE "Market Value (billion $)" = '17.2'