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Finding the Fourth Proportional to 10,808.08, 16,200.90 and 5,867.20

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Solution

The fourth proportional to 10,808.08, 16,200.90 and 5,867.20 is: 8,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,808.08 : 16,200.90 = 5,867.20 : x
  2. Step 2: Convert to fraction form
    10,808.08/16,200.90 = 5,867.20/x
  3. Step 3: Cross multiply
    10,808.08x = 16,200.90 × 5,867.20
  4. Step 4: Simplify right side
    10,808.08x = 95,053,920.48
  5. Step 5: Solve for x
    x = 95,053,920.48/10,808.08
  6. Step 6: Final answer
    x = 8,794.71

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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.