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Finding the Third Proportional to 47,493 and 74,115

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Solution

The third proportional to 47,493 and 74,115 is: 115,659.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,493 : 74,115 = 74,115 : x
  2. Step 2: Convert to fraction form
    47,493/74,115 = 74,115/x
  3. Step 3: Cross multiply
    47,493x = 74,115 × 74,115
  4. Step 4: Simplify right side
    47,493x = 5,493,033,225
  5. Step 5: Solve for x
    x = 5,493,033,225/47,493
  6. Step 6: Final answer
    x = 115,659.85

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.