Finding the Third Proportional to 987,850 and 2,156,491
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Solution
The third proportional to 987,850 and 2,156,491 is: 4,707,651.40
Step by Step Solution
- Step 1: Write the proportion equation
987,850 : 2,156,491 = 2,156,491 : x - Step 2: Convert to fraction form
987,850/2,156,491 = 2,156,491/x - Step 3: Cross multiply
987,850x = 2,156,491 × 2,156,491 - Step 4: Simplify right side
987,850x = 4,650,453,433,081 - Step 5: Solve for x
x = 4,650,453,433,081/987,850 - Step 6: Final answer
x = 4,707,651.40
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.