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Finding the Fourth Proportional to 28,793.96, 43,190.94 and 11,251.49

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Solution

The fourth proportional to 28,793.96, 43,190.94 and 11,251.49 is: 16,877.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.96 : 43,190.94 = 11,251.49 : x
  2. Step 2: Convert to fraction form
    28,793.96/43,190.94 = 11,251.49/x
  3. Step 3: Cross multiply
    28,793.96x = 43,190.94 × 11,251.49
  4. Step 4: Simplify right side
    28,793.96x = 485,962,213.55
  5. Step 5: Solve for x
    x = 485,962,213.55/28,793.96
  6. Step 6: Final answer
    x = 16,877.23

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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.