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Finding the Fourth Proportional to 26,603.68, 39,912.39 and 9,963.97

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Solution

The fourth proportional to 26,603.68, 39,912.39 and 9,963.97 is: 14,948.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,603.68 : 39,912.39 = 9,963.97 : x
  2. Step 2: Convert to fraction form
    26,603.68/39,912.39 = 9,963.97/x
  3. Step 3: Cross multiply
    26,603.68x = 39,912.39 × 9,963.97
  4. Step 4: Simplify right side
    26,603.68x = 397,685,856.59
  5. Step 5: Solve for x
    x = 397,685,856.59/26,603.68
  6. Step 6: Final answer
    x = 14,948.53

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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.