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Finding the Fourth Proportional to 18,623.92, 27,926.96 and 8,754.88

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Solution

The fourth proportional to 18,623.92, 27,926.96 and 8,754.88 is: 13,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.92 : 27,926.96 = 8,754.88 : x
  2. Step 2: Convert to fraction form
    18,623.92/27,926.96 = 8,754.88/x
  3. Step 3: Cross multiply
    18,623.92x = 27,926.96 × 8,754.88
  4. Step 4: Simplify right side
    18,623.92x = 244,497,183.56
  5. Step 5: Solve for x
    x = 244,497,183.56/18,623.92
  6. Step 6: Final answer
    x = 13,128.13

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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.