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Finding the Fourth Proportional to 18,103.29, 24,982.49 and 11,029.71

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Solution

The fourth proportional to 18,103.29, 24,982.49 and 11,029.71 is: 15,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.29 : 24,982.49 = 11,029.71 : x
  2. Step 2: Convert to fraction form
    18,103.29/24,982.49 = 11,029.71/x
  3. Step 3: Cross multiply
    18,103.29x = 24,982.49 × 11,029.71
  4. Step 4: Simplify right side
    18,103.29x = 275,549,619.78
  5. Step 5: Solve for x
    x = 275,549,619.78/18,103.29
  6. Step 6: Final answer
    x = 15,220.97

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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.