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Finding the Fourth Proportional to 2,449.81, 3,380.81 and 1,330.82

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Solution

The fourth proportional to 2,449.81, 3,380.81 and 1,330.82 is: 1,836.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.81 : 3,380.81 = 1,330.82 : x
  2. Step 2: Convert to fraction form
    2,449.81/3,380.81 = 1,330.82/x
  3. Step 3: Cross multiply
    2,449.81x = 3,380.81 × 1,330.82
  4. Step 4: Simplify right side
    2,449.81x = 4,499,226.01
  5. Step 5: Solve for x
    x = 4,499,226.01/2,449.81
  6. Step 6: Final answer
    x = 1,836.56

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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.