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Finding the Fourth Proportional to 3,893.16, 5,837.18 and 1,581.96

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Solution

The fourth proportional to 3,893.16, 5,837.18 and 1,581.96 is: 2,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.16 : 5,837.18 = 1,581.96 : x
  2. Step 2: Convert to fraction form
    3,893.16/5,837.18 = 1,581.96/x
  3. Step 3: Cross multiply
    3,893.16x = 5,837.18 × 1,581.96
  4. Step 4: Simplify right side
    3,893.16x = 9,234,185.27
  5. Step 5: Solve for x
    x = 9,234,185.27/3,893.16
  6. Step 6: Final answer
    x = 2,371.90

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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.