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Finding the Fourth Proportional to 8,693.13, 13,042.11 and 3,424.89

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Solution

The fourth proportional to 8,693.13, 13,042.11 and 3,424.89 is: 5,138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.13 : 13,042.11 = 3,424.89 : x
  2. Step 2: Convert to fraction form
    8,693.13/13,042.11 = 3,424.89/x
  3. Step 3: Cross multiply
    8,693.13x = 13,042.11 × 3,424.89
  4. Step 4: Simplify right side
    8,693.13x = 44,667,792.12
  5. Step 5: Solve for x
    x = 44,667,792.12/8,693.13
  6. Step 6: Final answer
    x = 5,138.29

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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.