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Finding the Third Proportional to 61.13 and 92.63

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Solution

The third proportional to 61.13 and 92.63 is: 140.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.13 : 92.63 = 92.63 : x
  2. Step 2: Convert to fraction form
    61.13/92.63 = 92.63/x
  3. Step 3: Cross multiply
    61.13x = 92.63 × 92.63
  4. Step 4: Simplify right side
    61.13x = 8,579.39
  5. Step 5: Solve for x
    x = 8,579.39/61.13
  6. Step 6: Final answer
    x = 140.36

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.