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Finding the Fourth Proportional to 18,234.60, 27,351.90 and 10,444.20

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Solution

The fourth proportional to 18,234.60, 27,351.90 and 10,444.20 is: 15,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.60 : 27,351.90 = 10,444.20 : x
  2. Step 2: Convert to fraction form
    18,234.60/27,351.90 = 10,444.20/x
  3. Step 3: Cross multiply
    18,234.60x = 27,351.90 × 10,444.20
  4. Step 4: Simplify right side
    18,234.60x = 285,668,713.98
  5. Step 5: Solve for x
    x = 285,668,713.98/18,234.60
  6. Step 6: Final answer
    x = 15,666.30

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Similar ratio
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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.