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Finding the Fourth Proportional to 8,358.61, 12,544.31 and 3,098.61

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Solution

The fourth proportional to 8,358.61, 12,544.31 and 3,098.61 is: 4,650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.61 : 12,544.31 = 3,098.61 : x
  2. Step 2: Convert to fraction form
    8,358.61/12,544.31 = 3,098.61/x
  3. Step 3: Cross multiply
    8,358.61x = 12,544.31 × 3,098.61
  4. Step 4: Simplify right side
    8,358.61x = 38,869,924.41
  5. Step 5: Solve for x
    x = 38,869,924.41/8,358.61
  6. Step 6: Final answer
    x = 4,650.29

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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.