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Finding the Fourth Proportional to 7,889.52, 11,834.28 and 3,272.52

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Solution

The fourth proportional to 7,889.52, 11,834.28 and 3,272.52 is: 4,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.52 : 11,834.28 = 3,272.52 : x
  2. Step 2: Convert to fraction form
    7,889.52/11,834.28 = 3,272.52/x
  3. Step 3: Cross multiply
    7,889.52x = 11,834.28 × 3,272.52
  4. Step 4: Simplify right side
    7,889.52x = 38,727,917.99
  5. Step 5: Solve for x
    x = 38,727,917.99/7,889.52
  6. Step 6: Final answer
    x = 4,908.78

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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.