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Finding the Fourth Proportional to 23,158.80, 34,738.20 and 22,251.60

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Solution

The fourth proportional to 23,158.80, 34,738.20 and 22,251.60 is: 33,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,158.80 : 34,738.20 = 22,251.60 : x
  2. Step 2: Convert to fraction form
    23,158.80/34,738.20 = 22,251.60/x
  3. Step 3: Cross multiply
    23,158.80x = 34,738.20 × 22,251.60
  4. Step 4: Simplify right side
    23,158.80x = 772,980,531.12
  5. Step 5: Solve for x
    x = 772,980,531.12/23,158.80
  6. Step 6: Final answer
    x = 33,377.40

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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.