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Finding the Fourth Proportional to 12,760.92, 19,147.86 and 6,604.92

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Solution

The fourth proportional to 12,760.92, 19,147.86 and 6,604.92 is: 9,910.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.92 : 19,147.86 = 6,604.92 : x
  2. Step 2: Convert to fraction form
    12,760.92/19,147.86 = 6,604.92/x
  3. Step 3: Cross multiply
    12,760.92x = 19,147.86 × 6,604.92
  4. Step 4: Simplify right side
    12,760.92x = 126,470,083.47
  5. Step 5: Solve for x
    x = 126,470,083.47/12,760.92
  6. Step 6: Final answer
    x = 9,910.73

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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.