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Finding the Third Proportional to 47.38 and 52.75

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Solution

The third proportional to 47.38 and 52.75 is: 58.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.38 : 52.75 = 52.75 : x
  2. Step 2: Convert to fraction form
    47.38/52.75 = 52.75/x
  3. Step 3: Cross multiply
    47.38x = 52.75 × 52.75
  4. Step 4: Simplify right side
    47.38x = 2,782.56
  5. Step 5: Solve for x
    x = 2,782.56/47.38
  6. Step 6: Final answer
    x = 58.73

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.