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Finding the Fourth Proportional to 8,516.59, 12,774.72 and 3,833.28

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Solution

The fourth proportional to 8,516.59, 12,774.72 and 3,833.28 is: 5,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.59 : 12,774.72 = 3,833.28 : x
  2. Step 2: Convert to fraction form
    8,516.59/12,774.72 = 3,833.28/x
  3. Step 3: Cross multiply
    8,516.59x = 12,774.72 × 3,833.28
  4. Step 4: Simplify right side
    8,516.59x = 48,969,078.68
  5. Step 5: Solve for x
    x = 48,969,078.68/8,516.59
  6. Step 6: Final answer
    x = 5,749.85

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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.