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Finding the Fourth Proportional to 7,324.75, 10,988.51 and 2,942.55

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Solution

The fourth proportional to 7,324.75, 10,988.51 and 2,942.55 is: 4,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.75 : 10,988.51 = 2,942.55 : x
  2. Step 2: Convert to fraction form
    7,324.75/10,988.51 = 2,942.55/x
  3. Step 3: Cross multiply
    7,324.75x = 10,988.51 × 2,942.55
  4. Step 4: Simplify right side
    7,324.75x = 32,334,240.10
  5. Step 5: Solve for x
    x = 32,334,240.10/7,324.75
  6. Step 6: Final answer
    x = 4,414.38

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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.