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Finding the Fourth Proportional to 8,375.61, 12,559.44 and 4,866.75

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Solution

The fourth proportional to 8,375.61, 12,559.44 and 4,866.75 is: 7,297.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.61 : 12,559.44 = 4,866.75 : x
  2. Step 2: Convert to fraction form
    8,375.61/12,559.44 = 4,866.75/x
  3. Step 3: Cross multiply
    8,375.61x = 12,559.44 × 4,866.75
  4. Step 4: Simplify right side
    8,375.61x = 61,123,654.62
  5. Step 5: Solve for x
    x = 61,123,654.62/8,375.61
  6. Step 6: Final answer
    x = 7,297.82

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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.