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Finding the Third Proportional to 25.55 and 41.13

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Solution

The third proportional to 25.55 and 41.13 is: 66.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.55 : 41.13 = 41.13 : x
  2. Step 2: Convert to fraction form
    25.55/41.13 = 41.13/x
  3. Step 3: Cross multiply
    25.55x = 41.13 × 41.13
  4. Step 4: Simplify right side
    25.55x = 1,691.91
  5. Step 5: Solve for x
    x = 1,691.91/25.55
  6. Step 6: Final answer
    x = 66.22

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.