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Finding the Fourth Proportional to 71,198.46, 106,794.05 and 18,605.97

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Solution

The fourth proportional to 71,198.46, 106,794.05 and 18,605.97 is: 27,908.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,198.46 : 106,794.05 = 18,605.97 : x
  2. Step 2: Convert to fraction form
    71,198.46/106,794.05 = 18,605.97/x
  3. Step 3: Cross multiply
    71,198.46x = 106,794.05 × 18,605.97
  4. Step 4: Simplify right side
    71,198.46x = 1,987,006,797.45
  5. Step 5: Solve for x
    x = 1,987,006,797.45/71,198.46
  6. Step 6: Final answer
    x = 27,908.00

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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.