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Finding the Fourth Proportional to 17,654.92, 26,481.78 and 8,289.70

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Solution

The fourth proportional to 17,654.92, 26,481.78 and 8,289.70 is: 12,434.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,654.92 : 26,481.78 = 8,289.70 : x
  2. Step 2: Convert to fraction form
    17,654.92/26,481.78 = 8,289.70/x
  3. Step 3: Cross multiply
    17,654.92x = 26,481.78 × 8,289.70
  4. Step 4: Simplify right side
    17,654.92x = 219,526,011.67
  5. Step 5: Solve for x
    x = 219,526,011.67/17,654.92
  6. Step 6: Final answer
    x = 12,434.27

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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.