1.   A spinning cylinder generates lift in direct proportion to the acceleration it imparts on the air streaming by.

2.   And as the country got wilder, the population grew thinner and loveliness increased in direct proportion to danger.

3.   As one grows the other grows in direct proportion.

4.   The rewards you get in this job are in direct proportion to the effort you put in.

5.   The value of higher education, on this view, is in direct proportion to the critical capacities of its graduates.

6.   This indicates that ferritin is released into the serum normally in direct proportion to the amount stored in tissues.

7.   Weight increases in direct proportion to Mass.

8.   Hence, the implication is that the price of equity will fall in direct proportion to the increase in the use of debt in the financial structure.

9.   But the rewards will be in direct proportion to the activity and efforts and work you put in.

10.   And, oddly, while room abounds in most directions, the happiness of the rear passengers will be in direct proportion to their lack of stature.