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Finding the Fourth Proportional to 18,321.61, 27,483.96 and 5,843.41

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Solution

The fourth proportional to 18,321.61, 27,483.96 and 5,843.41 is: 8,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.61 : 27,483.96 = 5,843.41 : x
  2. Step 2: Convert to fraction form
    18,321.61/27,483.96 = 5,843.41/x
  3. Step 3: Cross multiply
    18,321.61x = 27,483.96 × 5,843.41
  4. Step 4: Simplify right side
    18,321.61x = 160,600,046.70
  5. Step 5: Solve for x
    x = 160,600,046.70/18,321.61
  6. Step 6: Final answer
    x = 8,765.61

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Double scale
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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.