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Finding the Third Proportional to 63,078 and 74,598

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Solution

The third proportional to 63,078 and 74,598 is: 88,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,078 : 74,598 = 74,598 : x
  2. Step 2: Convert to fraction form
    63,078/74,598 = 74,598/x
  3. Step 3: Cross multiply
    63,078x = 74,598 × 74,598
  4. Step 4: Simplify right side
    63,078x = 5,564,861,604
  5. Step 5: Solve for x
    x = 5,564,861,604/63,078
  6. Step 6: Final answer
    x = 88,221.91

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.