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Finding the Fourth Proportional to 8,576.86, 12,866.10 and 3,029.62

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Solution

The fourth proportional to 8,576.86, 12,866.10 and 3,029.62 is: 4,544.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.86 : 12,866.10 = 3,029.62 : x
  2. Step 2: Convert to fraction form
    8,576.86/12,866.10 = 3,029.62/x
  3. Step 3: Cross multiply
    8,576.86x = 12,866.10 × 3,029.62
  4. Step 4: Simplify right side
    8,576.86x = 38,979,393.88
  5. Step 5: Solve for x
    x = 38,979,393.88/8,576.86
  6. Step 6: Final answer
    x = 4,544.72

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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.