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Finding the Fourth Proportional to 12,659.73, 17,470.43 and 6,917.27

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Solution

The fourth proportional to 12,659.73, 17,470.43 and 6,917.27 is: 9,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.73 : 17,470.43 = 6,917.27 : x
  2. Step 2: Convert to fraction form
    12,659.73/17,470.43 = 6,917.27/x
  3. Step 3: Cross multiply
    12,659.73x = 17,470.43 × 6,917.27
  4. Step 4: Simplify right side
    12,659.73x = 120,847,611.27
  5. Step 5: Solve for x
    x = 120,847,611.27/12,659.73
  6. Step 6: Final answer
    x = 9,545.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.