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Finding the Fourth Proportional to 16,481.99, 24,723.99 and 5,389.85

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Solution

The fourth proportional to 16,481.99, 24,723.99 and 5,389.85 is: 8,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,481.99 : 24,723.99 = 5,389.85 : x
  2. Step 2: Convert to fraction form
    16,481.99/24,723.99 = 5,389.85/x
  3. Step 3: Cross multiply
    16,481.99x = 24,723.99 × 5,389.85
  4. Step 4: Simplify right side
    16,481.99x = 133,258,473.88
  5. Step 5: Solve for x
    x = 133,258,473.88/16,481.99
  6. Step 6: Final answer
    x = 8,085.10

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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.