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Finding the Fourth Proportional to 38,964.03, 58,446.08 and 9,381.87

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Solution

The fourth proportional to 38,964.03, 58,446.08 and 9,381.87 is: 14,072.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,964.03 : 58,446.08 = 9,381.87 : x
  2. Step 2: Convert to fraction form
    38,964.03/58,446.08 = 9,381.87/x
  3. Step 3: Cross multiply
    38,964.03x = 58,446.08 × 9,381.87
  4. Step 4: Simplify right side
    38,964.03x = 548,333,524.57
  5. Step 5: Solve for x
    x = 548,333,524.57/38,964.03
  6. Step 6: Final answer
    x = 14,072.81

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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.