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Finding the Fourth Proportional to 2,563.76, 3,842.40 and 1,331.48

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Solution

The fourth proportional to 2,563.76, 3,842.40 and 1,331.48 is: 1,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,563.76 : 3,842.40 = 1,331.48 : x
  2. Step 2: Convert to fraction form
    2,563.76/3,842.40 = 1,331.48/x
  3. Step 3: Cross multiply
    2,563.76x = 3,842.40 × 1,331.48
  4. Step 4: Simplify right side
    2,563.76x = 5,116,078.75
  5. Step 5: Solve for x
    x = 5,116,078.75/2,563.76
  6. Step 6: Final answer
    x = 1,995.54

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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.