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Finding the Fourth Proportional to 8,122.52, 12,185.05 and 3,442.54

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Solution

The fourth proportional to 8,122.52, 12,185.05 and 3,442.54 is: 5,164.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.52 : 12,185.05 = 3,442.54 : x
  2. Step 2: Convert to fraction form
    8,122.52/12,185.05 = 3,442.54/x
  3. Step 3: Cross multiply
    8,122.52x = 12,185.05 × 3,442.54
  4. Step 4: Simplify right side
    8,122.52x = 41,947,522.03
  5. Step 5: Solve for x
    x = 41,947,522.03/8,122.52
  6. Step 6: Final answer
    x = 5,164.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.