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Finding the Third Proportional to 61,685 and 92,279

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Solution

The third proportional to 61,685 and 92,279 is: 138,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,685 : 92,279 = 92,279 : x
  2. Step 2: Convert to fraction form
    61,685/92,279 = 92,279/x
  3. Step 3: Cross multiply
    61,685x = 92,279 × 92,279
  4. Step 4: Simplify right side
    61,685x = 8,515,413,841
  5. Step 5: Solve for x
    x = 8,515,413,841/61,685
  6. Step 6: Final answer
    x = 138,046.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.