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Finding the Fourth Proportional to 22,981.40, 34,480.20 and 22,171.40

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Solution

The fourth proportional to 22,981.40, 34,480.20 and 22,171.40 is: 33,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,981.40 : 34,480.20 = 22,171.40 : x
  2. Step 2: Convert to fraction form
    22,981.40/34,480.20 = 22,171.40/x
  3. Step 3: Cross multiply
    22,981.40x = 34,480.20 × 22,171.40
  4. Step 4: Simplify right side
    22,981.40x = 764,474,306.28
  5. Step 5: Solve for x
    x = 764,474,306.28/22,981.40
  6. Step 6: Final answer
    x = 33,264.91

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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.