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Finding the Fourth Proportional to 18,469.74, 27,660.45 and 10,654.86

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Solution

The fourth proportional to 18,469.74, 27,660.45 and 10,654.86 is: 15,956.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.74 : 27,660.45 = 10,654.86 : x
  2. Step 2: Convert to fraction form
    18,469.74/27,660.45 = 10,654.86/x
  3. Step 3: Cross multiply
    18,469.74x = 27,660.45 × 10,654.86
  4. Step 4: Simplify right side
    18,469.74x = 294,718,222.29
  5. Step 5: Solve for x
    x = 294,718,222.29/18,469.74
  6. Step 6: Final answer
    x = 15,956.81

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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.