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Finding the Fourth Proportional to 8,843.92, 13,262.80 and 2,919.54

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Solution

The fourth proportional to 8,843.92, 13,262.80 and 2,919.54 is: 4,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,843.92 : 13,262.80 = 2,919.54 : x
  2. Step 2: Convert to fraction form
    8,843.92/13,262.80 = 2,919.54/x
  3. Step 3: Cross multiply
    8,843.92x = 13,262.80 × 2,919.54
  4. Step 4: Simplify right side
    8,843.92x = 38,721,275.11
  5. Step 5: Solve for x
    x = 38,721,275.11/8,843.92
  6. Step 6: Final answer
    x = 4,378.29

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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.