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Finding the Fourth Proportional to 51,168.33, 76,609.13 and 38,648.97

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Solution

The fourth proportional to 51,168.33, 76,609.13 and 38,648.97 is: 57,865.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,168.33 : 76,609.13 = 38,648.97 : x
  2. Step 2: Convert to fraction form
    51,168.33/76,609.13 = 38,648.97/x
  3. Step 3: Cross multiply
    51,168.33x = 76,609.13 × 38,648.97
  4. Step 4: Simplify right side
    51,168.33x = 2,960,863,773.85
  5. Step 5: Solve for x
    x = 2,960,863,773.85/51,168.33
  6. Step 6: Final answer
    x = 57,865.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.