Finding the Fourth Proportional to 21,945.84, 32,922 and 6,361.44
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Solution
The fourth proportional to 21,945.84, 32,922 and 6,361.44 is: 9,543.10
Step by Step Solution
- Step 1: Write the proportion equation
21,945.84 : 32,922 = 6,361.44 : x - Step 2: Convert to fraction form
21,945.84/32,922 = 6,361.44/x - Step 3: Cross multiply
21,945.84x = 32,922 × 6,361.44 - Step 4: Simplify right side
21,945.84x = 209,431,327.68 - Step 5: Solve for x
x = 209,431,327.68/21,945.84 - Step 6: Final answer
x = 9,543.10
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.