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Finding the Fourth Proportional to 11,295.97, 16,954.43 and 8,136.66

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Solution

The fourth proportional to 11,295.97, 16,954.43 and 8,136.66 is: 12,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,295.97 : 16,954.43 = 8,136.66 : x
  2. Step 2: Convert to fraction form
    11,295.97/16,954.43 = 8,136.66/x
  3. Step 3: Cross multiply
    11,295.97x = 16,954.43 × 8,136.66
  4. Step 4: Simplify right side
    11,295.97x = 137,952,391.72
  5. Step 5: Solve for x
    x = 137,952,391.72/11,295.97
  6. Step 6: Final answer
    x = 12,212.54

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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.