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Finding the Fourth Proportional to 18,843.44, 28,276.09 and 18,227.43

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Solution

The fourth proportional to 18,843.44, 28,276.09 and 18,227.43 is: 27,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.44 : 28,276.09 = 18,227.43 : x
  2. Step 2: Convert to fraction form
    18,843.44/28,276.09 = 18,227.43/x
  3. Step 3: Cross multiply
    18,843.44x = 28,276.09 × 18,227.43
  4. Step 4: Simplify right side
    18,843.44x = 515,400,405.58
  5. Step 5: Solve for x
    x = 515,400,405.58/18,843.44
  6. Step 6: Final answer
    x = 27,351.72

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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.