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Finding the Fourth Proportional to 7,289.82, 10,932.04 and 2,608.56

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Solution

The fourth proportional to 7,289.82, 10,932.04 and 2,608.56 is: 3,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.82 : 10,932.04 = 2,608.56 : x
  2. Step 2: Convert to fraction form
    7,289.82/10,932.04 = 2,608.56/x
  3. Step 3: Cross multiply
    7,289.82x = 10,932.04 × 2,608.56
  4. Step 4: Simplify right side
    7,289.82x = 28,516,882.26
  5. Step 5: Solve for x
    x = 28,516,882.26/7,289.82
  6. Step 6: Final answer
    x = 3,911.88

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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.