550 person NLHE tournament $200+25 buy in.

Payouts are
1st $27,500 6th $5,500
2nd $16,500 7th $4,400
3rd $11,000 8th $3,300
4th $7,700 9th $2,200
5th $6,600 10th $1,100
11th-20th $900
21st-30th $750
31st-40th $500
41st-50th $270

You have 27,000 chips with 56 players left, avg stack around 14,700.
There are 9 players with less than 3,000 chips and the blinds are at 500/1000 with a 50 chip ante.

You are under the gun with KK and raise to 3,000 a player to your left (pretty tight but getting shortstacked) raises all in for 5,800 and another player (A very strong tournament player, very aggressive) reraises all in for over 55,000. Your image at the table is very good.

What do you do and why?