Finding the Fourth Proportional to 19,690,363.20, 29,535,544.80 and 19,247,995.20
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Solution
The fourth proportional to 19,690,363.20, 29,535,544.80 and 19,247,995.20 is: 28,871,992.80
Step by Step Solution
- Step 1: Write the proportion equation
19,690,363.20 : 29,535,544.80 = 19,247,995.20 : x - Step 2: Convert to fraction form
19,690,363.20/29,535,544.80 = 19,247,995.20/x - Step 3: Cross multiply
19,690,363.20x = 29,535,544.80 × 19,247,995.20 - Step 4: Simplify right side
19,690,363.20x = 568,500,024,539,785 - Step 5: Solve for x
x = 568,500,024,539,785/19,690,363.20 - Step 6: Final answer
x = 28,871,992.80
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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.