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Finding the Fourth Proportional to 18,375.44, 27,572.27 and 7,281.88

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Solution

The fourth proportional to 18,375.44, 27,572.27 and 7,281.88 is: 10,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.44 : 27,572.27 = 7,281.88 : x
  2. Step 2: Convert to fraction form
    18,375.44/27,572.27 = 7,281.88/x
  3. Step 3: Cross multiply
    18,375.44x = 27,572.27 × 7,281.88
  4. Step 4: Simplify right side
    18,375.44x = 200,778,072.66
  5. Step 5: Solve for x
    x = 200,778,072.66/18,375.44
  6. Step 6: Final answer
    x = 10,926.44

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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.