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Finding the Fourth Proportional to 7,843.71, 10,829.39 and 4,862.73

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Solution

The fourth proportional to 7,843.71, 10,829.39 and 4,862.73 is: 6,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.71 : 10,829.39 = 4,862.73 : x
  2. Step 2: Convert to fraction form
    7,843.71/10,829.39 = 4,862.73/x
  3. Step 3: Cross multiply
    7,843.71x = 10,829.39 × 4,862.73
  4. Step 4: Simplify right side
    7,843.71x = 52,660,375.32
  5. Step 5: Solve for x
    x = 52,660,375.32/7,843.71
  6. Step 6: Final answer
    x = 6,713.71

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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.