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Finding the Fourth Proportional to 2,936.92, 4,396.74 and 1,960.60

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Solution

The fourth proportional to 2,936.92, 4,396.74 and 1,960.60 is: 2,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.92 : 4,396.74 = 1,960.60 : x
  2. Step 2: Convert to fraction form
    2,936.92/4,396.74 = 1,960.60/x
  3. Step 3: Cross multiply
    2,936.92x = 4,396.74 × 1,960.60
  4. Step 4: Simplify right side
    2,936.92x = 8,620,248.44
  5. Step 5: Solve for x
    x = 8,620,248.44/2,936.92
  6. Step 6: Final answer
    x = 2,935.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.