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Finding the Fourth Proportional to 8,295.86, 12,443.88 and 5,372.66

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Solution

The fourth proportional to 8,295.86, 12,443.88 and 5,372.66 is: 8,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,295.86 : 12,443.88 = 5,372.66 : x
  2. Step 2: Convert to fraction form
    8,295.86/12,443.88 = 5,372.66/x
  3. Step 3: Cross multiply
    8,295.86x = 12,443.88 × 5,372.66
  4. Step 4: Simplify right side
    8,295.86x = 66,856,736.32
  5. Step 5: Solve for x
    x = 66,856,736.32/8,295.86
  6. Step 6: Final answer
    x = 8,059.05

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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.