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Finding the Fourth Proportional to 7,859.43, 11,789.41 and 2,594.56

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Solution

The fourth proportional to 7,859.43, 11,789.41 and 2,594.56 is: 3,891.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.43 : 11,789.41 = 2,594.56 : x
  2. Step 2: Convert to fraction form
    7,859.43/11,789.41 = 2,594.56/x
  3. Step 3: Cross multiply
    7,859.43x = 11,789.41 × 2,594.56
  4. Step 4: Simplify right side
    7,859.43x = 30,588,331.61
  5. Step 5: Solve for x
    x = 30,588,331.61/7,859.43
  6. Step 6: Final answer
    x = 3,891.93

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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.