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Finding the Third Proportional to 41.05 and 61.70

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Solution

The third proportional to 41.05 and 61.70 is: 92.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.05 : 61.70 = 61.70 : x
  2. Step 2: Convert to fraction form
    41.05/61.70 = 61.70/x
  3. Step 3: Cross multiply
    41.05x = 61.70 × 61.70
  4. Step 4: Simplify right side
    41.05x = 3,806.79
  5. Step 5: Solve for x
    x = 3,806.79/41.05
  6. Step 6: Final answer
    x = 92.73

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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.