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Finding the Third Proportional to 61.17 and 110.53

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Solution

The third proportional to 61.17 and 110.53 is: 199.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.17 : 110.53 = 110.53 : x
  2. Step 2: Convert to fraction form
    61.17/110.53 = 110.53/x
  3. Step 3: Cross multiply
    61.17x = 110.53 × 110.53
  4. Step 4: Simplify right side
    61.17x = 12,217.16
  5. Step 5: Solve for x
    x = 12,217.16/61.17
  6. Step 6: Final answer
    x = 199.72

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.