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Finding the Fourth Proportional to 9,007.13, 13,500.44 and 5,631.48

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Solution

The fourth proportional to 9,007.13, 13,500.44 and 5,631.48 is: 8,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,007.13 : 13,500.44 = 5,631.48 : x
  2. Step 2: Convert to fraction form
    9,007.13/13,500.44 = 5,631.48/x
  3. Step 3: Cross multiply
    9,007.13x = 13,500.44 × 5,631.48
  4. Step 4: Simplify right side
    9,007.13x = 76,027,429.69
  5. Step 5: Solve for x
    x = 76,027,429.69/9,007.13
  6. Step 6: Final answer
    x = 8,440.80

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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.