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Finding the Fourth Proportional to 22,192.80, 33,289.20 and 13,423.20

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Solution

The fourth proportional to 22,192.80, 33,289.20 and 13,423.20 is: 20,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,192.80 : 33,289.20 = 13,423.20 : x
  2. Step 2: Convert to fraction form
    22,192.80/33,289.20 = 13,423.20/x
  3. Step 3: Cross multiply
    22,192.80x = 33,289.20 × 13,423.20
  4. Step 4: Simplify right side
    22,192.80x = 446,847,589.44
  5. Step 5: Solve for x
    x = 446,847,589.44/22,192.80
  6. Step 6: Final answer
    x = 20,134.80

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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.