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Finding the Third Proportional to 62.88 and 93.94

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Solution

The third proportional to 62.88 and 93.94 is: 140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.88 : 93.94 = 93.94 : x
  2. Step 2: Convert to fraction form
    62.88/93.94 = 93.94/x
  3. Step 3: Cross multiply
    62.88x = 93.94 × 93.94
  4. Step 4: Simplify right side
    62.88x = 8,824.25
  5. Step 5: Solve for x
    x = 8,824.25/62.88
  6. Step 6: Final answer
    x = 140.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.