SELECT AVG("LOA (Metres)") FROM table_36481 WHERE "Corrected time d:hh:mm:ss" = '3:12:07:43'
WHICH LOA (Metres) has a Corrected time d:hh:mm:ss of 3:12:07:43?
CREATE TABLE table_36481 (
    "Position" real,
    "Sail number" text,
    "Yacht" text,
    "State/country" text,
    "Yacht type" text,
    "LOA (Metres)" real,
    "Skipper" text,
    "Corrected time d:hh:mm:ss" text
)