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Finding the Third Proportional to 47,910 and 73,539

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Solution

The third proportional to 47,910 and 73,539 is: 112,877.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,910 : 73,539 = 73,539 : x
  2. Step 2: Convert to fraction form
    47,910/73,539 = 73,539/x
  3. Step 3: Cross multiply
    47,910x = 73,539 × 73,539
  4. Step 4: Simplify right side
    47,910x = 5,407,984,521
  5. Step 5: Solve for x
    x = 5,407,984,521/47,910
  6. Step 6: Final answer
    x = 112,877.99

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.