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Finding the Fourth Proportional to 2,947.92, 4,067.58 and 1,753.30

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Solution

The fourth proportional to 2,947.92, 4,067.58 and 1,753.30 is: 2,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.92 : 4,067.58 = 1,753.30 : x
  2. Step 2: Convert to fraction form
    2,947.92/4,067.58 = 1,753.30/x
  3. Step 3: Cross multiply
    2,947.92x = 4,067.58 × 1,753.30
  4. Step 4: Simplify right side
    2,947.92x = 7,131,688.01
  5. Step 5: Solve for x
    x = 7,131,688.01/2,947.92
  6. Step 6: Final answer
    x = 2,419.23

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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.