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Finding the Third Proportional to 37.27 and 47.72

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Solution

The third proportional to 37.27 and 47.72 is: 61.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.27 : 47.72 = 47.72 : x
  2. Step 2: Convert to fraction form
    37.27/47.72 = 47.72/x
  3. Step 3: Cross multiply
    37.27x = 47.72 × 47.72
  4. Step 4: Simplify right side
    37.27x = 2,277.08
  5. Step 5: Solve for x
    x = 2,277.08/37.27
  6. Step 6: Final answer
    x = 61.10

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.