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Finding the Fourth Proportional to 11,960.88, 17,957.52 and 8,253.96

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Solution

The fourth proportional to 11,960.88, 17,957.52 and 8,253.96 is: 12,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,960.88 : 17,957.52 = 8,253.96 : x
  2. Step 2: Convert to fraction form
    11,960.88/17,957.52 = 8,253.96/x
  3. Step 3: Cross multiply
    11,960.88x = 17,957.52 × 8,253.96
  4. Step 4: Simplify right side
    11,960.88x = 148,220,651.78
  5. Step 5: Solve for x
    x = 148,220,651.78/11,960.88
  6. Step 6: Final answer
    x = 12,392.12

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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.