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Finding the Fourth Proportional to 22,396.80, 33,591.42 and 6,385.20

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Solution

The fourth proportional to 22,396.80, 33,591.42 and 6,385.20 is: 9,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,396.80 : 33,591.42 = 6,385.20 : x
  2. Step 2: Convert to fraction form
    22,396.80/33,591.42 = 6,385.20/x
  3. Step 3: Cross multiply
    22,396.80x = 33,591.42 × 6,385.20
  4. Step 4: Simplify right side
    22,396.80x = 214,487,934.98
  5. Step 5: Solve for x
    x = 214,487,934.98/22,396.80
  6. Step 6: Final answer
    x = 9,576.72

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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.