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Finding the Fourth Proportional to 3,800.62, 5,672.10 and 3,702.20

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Solution

The fourth proportional to 3,800.62, 5,672.10 and 3,702.20 is: 5,525.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.62 : 5,672.10 = 3,702.20 : x
  2. Step 2: Convert to fraction form
    3,800.62/5,672.10 = 3,702.20/x
  3. Step 3: Cross multiply
    3,800.62x = 5,672.10 × 3,702.20
  4. Step 4: Simplify right side
    3,800.62x = 20,999,230.11
  5. Step 5: Solve for x
    x = 20,999,230.11/3,800.62
  6. Step 6: Final answer
    x = 5,525.22

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.