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Finding the Fourth Proportional to 3,940.83, 5,435.94 and 2,346.42

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Solution

The fourth proportional to 3,940.83, 5,435.94 and 2,346.42 is: 3,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.83 : 5,435.94 = 2,346.42 : x
  2. Step 2: Convert to fraction form
    3,940.83/5,435.94 = 2,346.42/x
  3. Step 3: Cross multiply
    3,940.83x = 5,435.94 × 2,346.42
  4. Step 4: Simplify right side
    3,940.83x = 12,754,998.33
  5. Step 5: Solve for x
    x = 12,754,998.33/3,940.83
  6. Step 6: Final answer
    x = 3,236.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.