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Finding the Fourth Proportional to 8,329.07, 12,479.78 and 5,858.71

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Solution

The fourth proportional to 8,329.07, 12,479.78 and 5,858.71 is: 8,778.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.07 : 12,479.78 = 5,858.71 : x
  2. Step 2: Convert to fraction form
    8,329.07/12,479.78 = 5,858.71/x
  3. Step 3: Cross multiply
    8,329.07x = 12,479.78 × 5,858.71
  4. Step 4: Simplify right side
    8,329.07x = 73,115,395.33
  5. Step 5: Solve for x
    x = 73,115,395.33/8,329.07
  6. Step 6: Final answer
    x = 8,778.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.