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Finding the Fourth Proportional to 2,474.93, 3,419.71 and 1,947.99

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Solution

The fourth proportional to 2,474.93, 3,419.71 and 1,947.99 is: 2,691.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.93 : 3,419.71 = 1,947.99 : x
  2. Step 2: Convert to fraction form
    2,474.93/3,419.71 = 1,947.99/x
  3. Step 3: Cross multiply
    2,474.93x = 3,419.71 × 1,947.99
  4. Step 4: Simplify right side
    2,474.93x = 6,661,560.88
  5. Step 5: Solve for x
    x = 6,661,560.88/2,474.93
  6. Step 6: Final answer
    x = 2,691.62

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Why These Related Problems?

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