Analogies and proportions

Analogies such as the ratios in the last activity show proportions between different amounts. The following analogies will show size proportions. You may use a calculator to solve these analogies. See if you can discover a way to use M+ (entering a number into memory) and M.rc (bringing up the number you entered) to help you solve these analogies.
HOT TIP: be sure to CLEAR the Memory (push M.rc TWO times to clear) between each calculation (numbers stay in Memory until it is cleared).