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Finding the Fourth Proportional to 1,362.72, 1,884.33 and 1,082.46

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Solution

The fourth proportional to 1,362.72, 1,884.33 and 1,082.46 is: 1,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.72 : 1,884.33 = 1,082.46 : x
  2. Step 2: Convert to fraction form
    1,362.72/1,884.33 = 1,082.46/x
  3. Step 3: Cross multiply
    1,362.72x = 1,884.33 × 1,082.46
  4. Step 4: Simplify right side
    1,362.72x = 2,039,711.85
  5. Step 5: Solve for x
    x = 2,039,711.85/1,362.72
  6. Step 6: Final answer
    x = 1,496.79

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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.