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Finding the Fourth Proportional to 22,951.20, 34,399.80 and 13,099.80

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Solution

The fourth proportional to 22,951.20, 34,399.80 and 13,099.80 is: 19,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,951.20 : 34,399.80 = 13,099.80 : x
  2. Step 2: Convert to fraction form
    22,951.20/34,399.80 = 13,099.80/x
  3. Step 3: Cross multiply
    22,951.20x = 34,399.80 × 13,099.80
  4. Step 4: Simplify right side
    22,951.20x = 450,630,500.04
  5. Step 5: Solve for x
    x = 450,630,500.04/22,951.20
  6. Step 6: Final answer
    x = 19,634.29

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1.5x scale

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.