Write out the following proportions in words. a. 7 : 28 = 2 : 8 b. 3⁄1 = 18⁄6 c. 9 : 72 = 2 : 16 d. 81⁄9 = 45⁄5 write each statement as a proportion using colons. a. 4 is to 20 as 2 is to 10. b. 9 is to 27 as 2 is to 6. write each statement as a proportion using fractions. a. 25 is to 75 as 50 is to 150. b. 40 is to 90 as 8 is to 18. identify the means and the extremes in each of the following proportions. a. 4 : 24 = 2 : 12 b. 24⁄6 = 16⁄4 c. 4 : 8 = 8 : 16 d. 6⁄50 = 3⁄25 find the value of x in each of the following proportions. a. 6 : 9 = x : 72 b. 8⁄3 = 40⁄x c. x : 55 = 3 : 5 d. 33⁄x = 11⁄5 a recipe calls for 5 cups of flour for every 6 teaspoons of salt. if you wanted to make a larger batch of the same recipe with 15 cups of flour, how much salt would you need? a 20-foot flagpole casts a 6-foot shadow. how tall is a nearby building that casts a 30-foot shadow? for every 15 columns of news stories in a newspaper, 4 columns of ads are required. if a newspaper contains 300 columns of news stories, how many columns of ads must it have? a certain color paint should have a mix of blue and green in a ratio of 5: 2. if a house painter needs to use 8 gallons of green paint, how many gallons of blue paint should he mix with it in order to obtain the right color?