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Finding the Fourth Proportional to 15,267.56, 22,879.46 and 8,679.83

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Solution

The fourth proportional to 15,267.56, 22,879.46 and 8,679.83 is: 13,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.56 : 22,879.46 = 8,679.83 : x
  2. Step 2: Convert to fraction form
    15,267.56/22,879.46 = 8,679.83/x
  3. Step 3: Cross multiply
    15,267.56x = 22,879.46 × 8,679.83
  4. Step 4: Simplify right side
    15,267.56x = 198,589,730.59
  5. Step 5: Solve for x
    x = 198,589,730.59/15,267.56
  6. Step 6: Final answer
    x = 13,007.30

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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.