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Finding the Fourth Proportional to 8,576.58, 12,866.85 and 3,646.38

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Solution

The fourth proportional to 8,576.58, 12,866.85 and 3,646.38 is: 5,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.58 : 12,866.85 = 3,646.38 : x
  2. Step 2: Convert to fraction form
    8,576.58/12,866.85 = 3,646.38/x
  3. Step 3: Cross multiply
    8,576.58x = 12,866.85 × 3,646.38
  4. Step 4: Simplify right side
    8,576.58x = 46,917,424.50
  5. Step 5: Solve for x
    x = 46,917,424.50/8,576.58
  6. Step 6: Final answer
    x = 5,470.41

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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.