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Finding the Fourth Proportional to 5,874.38, 8,811.30 and 1,491.92

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Solution

The fourth proportional to 5,874.38, 8,811.30 and 1,491.92 is: 2,237.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,874.38 : 8,811.30 = 1,491.92 : x
  2. Step 2: Convert to fraction form
    5,874.38/8,811.30 = 1,491.92/x
  3. Step 3: Cross multiply
    5,874.38x = 8,811.30 × 1,491.92
  4. Step 4: Simplify right side
    5,874.38x = 13,145,754.70
  5. Step 5: Solve for x
    x = 13,145,754.70/5,874.38
  6. Step 6: Final answer
    x = 2,237.81

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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.