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Finding the Fourth Proportional to 11,235.62, 16,827.17 and 8,879.82

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Solution

The fourth proportional to 11,235.62, 16,827.17 and 8,879.82 is: 13,298.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.62 : 16,827.17 = 8,879.82 : x
  2. Step 2: Convert to fraction form
    11,235.62/16,827.17 = 8,879.82/x
  3. Step 3: Cross multiply
    11,235.62x = 16,827.17 × 8,879.82
  4. Step 4: Simplify right side
    11,235.62x = 149,422,133.21
  5. Step 5: Solve for x
    x = 149,422,133.21/11,235.62
  6. Step 6: Final answer
    x = 13,298.96

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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.