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Finding the Fourth Proportional to 18,147.62, 27,197.54 and 16,963.80

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Solution

The fourth proportional to 18,147.62, 27,197.54 and 16,963.80 is: 25,423.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.62 : 27,197.54 = 16,963.80 : x
  2. Step 2: Convert to fraction form
    18,147.62/27,197.54 = 16,963.80/x
  3. Step 3: Cross multiply
    18,147.62x = 27,197.54 × 16,963.80
  4. Step 4: Simplify right side
    18,147.62x = 461,373,629.05
  5. Step 5: Solve for x
    x = 461,373,629.05/18,147.62
  6. Step 6: Final answer
    x = 25,423.37

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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.