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Finding the Fourth Proportional to 18,149.25, 27,198.33 and 14,434.98

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Solution

The fourth proportional to 18,149.25, 27,198.33 and 14,434.98 is: 21,632.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.25 : 27,198.33 = 14,434.98 : x
  2. Step 2: Convert to fraction form
    18,149.25/27,198.33 = 14,434.98/x
  3. Step 3: Cross multiply
    18,149.25x = 27,198.33 × 14,434.98
  4. Step 4: Simplify right side
    18,149.25x = 392,607,349.58
  5. Step 5: Solve for x
    x = 392,607,349.58/18,149.25
  6. Step 6: Final answer
    x = 21,632.15

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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.