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Finding the Fourth Proportional to 8,552.64, 12,831.24 and 3,934.56

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Solution

The fourth proportional to 8,552.64, 12,831.24 and 3,934.56 is: 5,902.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,552.64 : 12,831.24 = 3,934.56 : x
  2. Step 2: Convert to fraction form
    8,552.64/12,831.24 = 3,934.56/x
  3. Step 3: Cross multiply
    8,552.64x = 12,831.24 × 3,934.56
  4. Step 4: Simplify right side
    8,552.64x = 50,485,283.65
  5. Step 5: Solve for x
    x = 50,485,283.65/8,552.64
  6. Step 6: Final answer
    x = 5,902.89

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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.