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Finding the Fourth Proportional to 8,882.72, 13,319.19 and 3,616.39

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Solution

The fourth proportional to 8,882.72, 13,319.19 and 3,616.39 is: 5,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,882.72 : 13,319.19 = 3,616.39 : x
  2. Step 2: Convert to fraction form
    8,882.72/13,319.19 = 3,616.39/x
  3. Step 3: Cross multiply
    8,882.72x = 13,319.19 × 3,616.39
  4. Step 4: Simplify right side
    8,882.72x = 48,167,327.25
  5. Step 5: Solve for x
    x = 48,167,327.25/8,882.72
  6. Step 6: Final answer
    x = 5,422.58

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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.