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Finding the Fourth Proportional to 18,229.75, 27,344.63 and 5,917.75

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Solution

The fourth proportional to 18,229.75, 27,344.63 and 5,917.75 is: 8,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.75 : 27,344.63 = 5,917.75 : x
  2. Step 2: Convert to fraction form
    18,229.75/27,344.63 = 5,917.75/x
  3. Step 3: Cross multiply
    18,229.75x = 27,344.63 × 5,917.75
  4. Step 4: Simplify right side
    18,229.75x = 161,818,684.18
  5. Step 5: Solve for x
    x = 161,818,684.18/18,229.75
  6. Step 6: Final answer
    x = 8,876.63

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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.