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Finding the Fourth Proportional to 22,793.40, 34,190.10 and 12,951.90

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Solution

The fourth proportional to 22,793.40, 34,190.10 and 12,951.90 is: 19,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,793.40 : 34,190.10 = 12,951.90 : x
  2. Step 2: Convert to fraction form
    22,793.40/34,190.10 = 12,951.90/x
  3. Step 3: Cross multiply
    22,793.40x = 34,190.10 × 12,951.90
  4. Step 4: Simplify right side
    22,793.40x = 442,826,756.19
  5. Step 5: Solve for x
    x = 442,826,756.19/22,793.40
  6. Step 6: Final answer
    x = 19,427.85

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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.