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Finding the Fourth Proportional to 16,383.21, 24,572.92 and 8,481.31

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Solution

The fourth proportional to 16,383.21, 24,572.92 and 8,481.31 is: 12,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,383.21 : 24,572.92 = 8,481.31 : x
  2. Step 2: Convert to fraction form
    16,383.21/24,572.92 = 8,481.31/x
  3. Step 3: Cross multiply
    16,383.21x = 24,572.92 × 8,481.31
  4. Step 4: Simplify right side
    16,383.21x = 208,410,386.85
  5. Step 5: Solve for x
    x = 208,410,386.85/16,383.21
  6. Step 6: Final answer
    x = 12,720.97

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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.