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Finding the Third Proportional to 42,246 and 56,877

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Solution

The third proportional to 42,246 and 56,877 is: 76,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,246 : 56,877 = 56,877 : x
  2. Step 2: Convert to fraction form
    42,246/56,877 = 56,877/x
  3. Step 3: Cross multiply
    42,246x = 56,877 × 56,877
  4. Step 4: Simplify right side
    42,246x = 3,234,993,129
  5. Step 5: Solve for x
    x = 3,234,993,129/42,246
  6. Step 6: Final answer
    x = 76,575.13

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.