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Finding the Third Proportional to 57.38 and 110.75

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Solution

The third proportional to 57.38 and 110.75 is: 213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57.38 : 110.75 = 110.75 : x
  2. Step 2: Convert to fraction form
    57.38/110.75 = 110.75/x
  3. Step 3: Cross multiply
    57.38x = 110.75 × 110.75
  4. Step 4: Simplify right side
    57.38x = 12,265.56
  5. Step 5: Solve for x
    x = 12,265.56/57.38
  6. Step 6: Final answer
    x = 213.78

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Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.