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Finding the Fourth Proportional to 16,861.65, 25,287.65 and 5,014.94

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Solution

The fourth proportional to 16,861.65, 25,287.65 and 5,014.94 is: 7,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.65 : 25,287.65 = 5,014.94 : x
  2. Step 2: Convert to fraction form
    16,861.65/25,287.65 = 5,014.94/x
  3. Step 3: Cross multiply
    16,861.65x = 25,287.65 × 5,014.94
  4. Step 4: Simplify right side
    16,861.65x = 126,815,895.98
  5. Step 5: Solve for x
    x = 126,815,895.98/16,861.65
  6. Step 6: Final answer
    x = 7,520.97

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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.