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Finding the Fourth Proportional to 16,644.75, 24,984.23 and 12,986.97

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Solution

The fourth proportional to 16,644.75, 24,984.23 and 12,986.97 is: 19,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,644.75 : 24,984.23 = 12,986.97 : x
  2. Step 2: Convert to fraction form
    16,644.75/24,984.23 = 12,986.97/x
  3. Step 3: Cross multiply
    16,644.75x = 24,984.23 × 12,986.97
  4. Step 4: Simplify right side
    16,644.75x = 324,469,380.55
  5. Step 5: Solve for x
    x = 324,469,380.55/16,644.75
  6. Step 6: Final answer
    x = 19,493.80

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1.5x scale

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.