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Finding the Third Proportional to 57.75 and 62.06

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Solution

The third proportional to 57.75 and 62.06 is: 66.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57.75 : 62.06 = 62.06 : x
  2. Step 2: Convert to fraction form
    57.75/62.06 = 62.06/x
  3. Step 3: Cross multiply
    57.75x = 62.06 × 62.06
  4. Step 4: Simplify right side
    57.75x = 3,851.75
  5. Step 5: Solve for x
    x = 3,851.75/57.75
  6. Step 6: Final answer
    x = 66.70

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.