First time playing Fallout 1

I started playing the game a few hours ago. I am currently doing the quest to rescue Tandi. After a few failed attempts of killing all the raiders I looking up how to rescue Tandi and I saw that you can intimate garl if you have 45% speech. I currently have 47% and when I try it I get into a fight with the raiders. Am I missing something or is the 45% on the wiki wrong?