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Finding the Third Proportional to 39,484 and 52,170

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Solution

The third proportional to 39,484 and 52,170 is: 68,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,484 : 52,170 = 52,170 : x
  2. Step 2: Convert to fraction form
    39,484/52,170 = 52,170/x
  3. Step 3: Cross multiply
    39,484x = 52,170 × 52,170
  4. Step 4: Simplify right side
    39,484x = 2,721,708,900
  5. Step 5: Solve for x
    x = 2,721,708,900/39,484
  6. Step 6: Final answer
    x = 68,931.94

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.