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Finding the Fourth Proportional to 8,615.92, 12,923.44 and 2,375.99

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Solution

The fourth proportional to 8,615.92, 12,923.44 and 2,375.99 is: 3,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.92 : 12,923.44 = 2,375.99 : x
  2. Step 2: Convert to fraction form
    8,615.92/12,923.44 = 2,375.99/x
  3. Step 3: Cross multiply
    8,615.92x = 12,923.44 × 2,375.99
  4. Step 4: Simplify right side
    8,615.92x = 30,705,893.65
  5. Step 5: Solve for x
    x = 30,705,893.65/8,615.92
  6. Step 6: Final answer
    x = 3,563.86

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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.