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Finding the Third Proportional to 61.25 and 92

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Solution

The third proportional to 61.25 and 92 is: 138.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.25 : 92 = 92 : x
  2. Step 2: Convert to fraction form
    61.25/92 = 92/x
  3. Step 3: Cross multiply
    61.25x = 92 × 92
  4. Step 4: Simplify right side
    61.25x = 8,464
  5. Step 5: Solve for x
    x = 8,464/61.25
  6. Step 6: Final answer
    x = 138.19

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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.