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Finding the Fourth Proportional to 27,666, 41,499.36 and 9,198

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Solution

The fourth proportional to 27,666, 41,499.36 and 9,198 is: 13,797.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666 : 41,499.36 = 9,198 : x
  2. Step 2: Convert to fraction form
    27,666/41,499.36 = 9,198/x
  3. Step 3: Cross multiply
    27,666x = 41,499.36 × 9,198
  4. Step 4: Simplify right side
    27,666x = 381,711,113.28
  5. Step 5: Solve for x
    x = 381,711,113.28/27,666
  6. Step 6: Final answer
    x = 13,797.12

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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.