Table: t_1962_vfl_match_4
Columns: home_team
home_team_score
away_team
away_team_score
venue
crowd
date

Question: What is the sum of all the crowds at matches where the away team's score was 7.6 (48)?
SQL: SELECT SUM("crowd") FROM t_1962_vfl_match_4 WHERE "away_team_score" = '7.6 (48)'