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Finding the Fourth Proportional to 3,892.60, 5,845.38 and 3,763

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Solution

The fourth proportional to 3,892.60, 5,845.38 and 3,763 is: 5,650.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.60 : 5,845.38 = 3,763 : x
  2. Step 2: Convert to fraction form
    3,892.60/5,845.38 = 3,763/x
  3. Step 3: Cross multiply
    3,892.60x = 5,845.38 × 3,763
  4. Step 4: Simplify right side
    3,892.60x = 21,996,164.94
  5. Step 5: Solve for x
    x = 21,996,164.94/3,892.60
  6. Step 6: Final answer
    x = 5,650.76

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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.