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Finding the Fourth Proportional to 8,872.44, 13,311.81 and 5,581.86

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Solution

The fourth proportional to 8,872.44, 13,311.81 and 5,581.86 is: 8,374.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.44 : 13,311.81 = 5,581.86 : x
  2. Step 2: Convert to fraction form
    8,872.44/13,311.81 = 5,581.86/x
  3. Step 3: Cross multiply
    8,872.44x = 13,311.81 × 5,581.86
  4. Step 4: Simplify right side
    8,872.44x = 74,304,659.77
  5. Step 5: Solve for x
    x = 74,304,659.77/8,872.44
  6. Step 6: Final answer
    x = 8,374.77

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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.