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Finding the Fourth Proportional to 18,331.94, 27,479.12 and 7,234.14

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Solution

The fourth proportional to 18,331.94, 27,479.12 and 7,234.14 is: 10,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.94 : 27,479.12 = 7,234.14 : x
  2. Step 2: Convert to fraction form
    18,331.94/27,479.12 = 7,234.14/x
  3. Step 3: Cross multiply
    18,331.94x = 27,479.12 × 7,234.14
  4. Step 4: Simplify right side
    18,331.94x = 198,787,801.16
  5. Step 5: Solve for x
    x = 198,787,801.16/18,331.94
  6. Step 6: Final answer
    x = 10,843.80

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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.