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Finding the Fourth Proportional to 18,294.46, 27,446.24 and 8,440.61

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Solution

The fourth proportional to 18,294.46, 27,446.24 and 8,440.61 is: 12,663.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.46 : 27,446.24 = 8,440.61 : x
  2. Step 2: Convert to fraction form
    18,294.46/27,446.24 = 8,440.61/x
  3. Step 3: Cross multiply
    18,294.46x = 27,446.24 × 8,440.61
  4. Step 4: Simplify right side
    18,294.46x = 231,662,891.68
  5. Step 5: Solve for x
    x = 231,662,891.68/18,294.46
  6. Step 6: Final answer
    x = 12,663.01

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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.