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Finding the Third Proportional to 38,928 and 60,400

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Solution

The third proportional to 38,928 and 60,400 is: 93,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,928 : 60,400 = 60,400 : x
  2. Step 2: Convert to fraction form
    38,928/60,400 = 60,400/x
  3. Step 3: Cross multiply
    38,928x = 60,400 × 60,400
  4. Step 4: Simplify right side
    38,928x = 3,648,160,000
  5. Step 5: Solve for x
    x = 3,648,160,000/38,928
  6. Step 6: Final answer
    x = 93,715.58

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.