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Finding the Fourth Proportional to 18,843.18, 28,233.36 and 8,297.52

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Solution

The fourth proportional to 18,843.18, 28,233.36 and 8,297.52 is: 12,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.18 : 28,233.36 = 8,297.52 : x
  2. Step 2: Convert to fraction form
    18,843.18/28,233.36 = 8,297.52/x
  3. Step 3: Cross multiply
    18,843.18x = 28,233.36 × 8,297.52
  4. Step 4: Simplify right side
    18,843.18x = 234,266,869.27
  5. Step 5: Solve for x
    x = 234,266,869.27/18,843.18
  6. Step 6: Final answer
    x = 12,432.45

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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.