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Finding the Fourth Proportional to 7,324.66, 10,992.62 and 3,815.55

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Solution

The fourth proportional to 7,324.66, 10,992.62 and 3,815.55 is: 5,726.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.66 : 10,992.62 = 3,815.55 : x
  2. Step 2: Convert to fraction form
    7,324.66/10,992.62 = 3,815.55/x
  3. Step 3: Cross multiply
    7,324.66x = 10,992.62 × 3,815.55
  4. Step 4: Simplify right side
    7,324.66x = 41,942,900.78
  5. Step 5: Solve for x
    x = 41,942,900.78/7,324.66
  6. Step 6: Final answer
    x = 5,726.26

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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.