CREATE TABLE table_22644589_4 (event VARCHAR, compulsory_dance__cd_ VARCHAR)

In what even was the compulsory dance scored 23.75?
SELECT event FROM table_22644589_4 WHERE compulsory_dance__cd_ = "23.75"
SELECT "event" FROM "table_22644589_4" WHERE "23.75" = "compulsory_dance__cd_"