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Finding the Fourth Proportional to 16,246.65, 24,388.20 and 12,565.20

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Solution

The fourth proportional to 16,246.65, 24,388.20 and 12,565.20 is: 18,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,246.65 : 24,388.20 = 12,565.20 : x
  2. Step 2: Convert to fraction form
    16,246.65/24,388.20 = 12,565.20/x
  3. Step 3: Cross multiply
    16,246.65x = 24,388.20 × 12,565.20
  4. Step 4: Simplify right side
    16,246.65x = 306,442,610.64
  5. Step 5: Solve for x
    x = 306,442,610.64/16,246.65
  6. Step 6: Final answer
    x = 18,861.90

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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.