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Finding the Fourth Proportional to 18,100.88, 24,979.17 and 11,027.31

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Solution

The fourth proportional to 18,100.88, 24,979.17 and 11,027.31 is: 15,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.88 : 24,979.17 = 11,027.31 : x
  2. Step 2: Convert to fraction form
    18,100.88/24,979.17 = 11,027.31/x
  3. Step 3: Cross multiply
    18,100.88x = 24,979.17 × 11,027.31
  4. Step 4: Simplify right side
    18,100.88x = 275,452,998.81
  5. Step 5: Solve for x
    x = 275,452,998.81/18,100.88
  6. Step 6: Final answer
    x = 15,217.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.