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Finding the Fourth Proportional to 18,603.38, 27,896.99 and 6,753.21

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Solution

The fourth proportional to 18,603.38, 27,896.99 and 6,753.21 is: 10,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.38 : 27,896.99 = 6,753.21 : x
  2. Step 2: Convert to fraction form
    18,603.38/27,896.99 = 6,753.21/x
  3. Step 3: Cross multiply
    18,603.38x = 27,896.99 × 6,753.21
  4. Step 4: Simplify right side
    18,603.38x = 188,394,231.84
  5. Step 5: Solve for x
    x = 188,394,231.84/18,603.38
  6. Step 6: Final answer
    x = 10,126.88

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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.