I have a problem that shows a picture with an arrow in it. The arrow in the picture shows that is is 5 cm in length. The actual length of the arrow is given in the problem as 43 m. The question asks for me to determine the scale of the picture. So, I've set up a ratio: 1/x = 5/45 (1 cm in picture/x m acutal = 5 cm in picture/43 m actual) I solve and get the scale to be 1:8.6 I think that I have the right idea, but the solution should be 1:86. Am I supposed to get rid of the decimal in the final answer??