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Finding the Fourth Proportional to 7,293.87, 10,940.94 and 2,099.88

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Solution

The fourth proportional to 7,293.87, 10,940.94 and 2,099.88 is: 3,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,293.87 : 10,940.94 = 2,099.88 : x
  2. Step 2: Convert to fraction form
    7,293.87/10,940.94 = 2,099.88/x
  3. Step 3: Cross multiply
    7,293.87x = 10,940.94 × 2,099.88
  4. Step 4: Simplify right side
    7,293.87x = 22,974,661.09
  5. Step 5: Solve for x
    x = 22,974,661.09/7,293.87
  6. Step 6: Final answer
    x = 3,149.86

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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.