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Finding the Fourth Proportional to 13,703.26, 20,542.31 and 4,936.05

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Solution

The fourth proportional to 13,703.26, 20,542.31 and 4,936.05 is: 7,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.26 : 20,542.31 = 4,936.05 : x
  2. Step 2: Convert to fraction form
    13,703.26/20,542.31 = 4,936.05/x
  3. Step 3: Cross multiply
    13,703.26x = 20,542.31 × 4,936.05
  4. Step 4: Simplify right side
    13,703.26x = 101,397,869.28
  5. Step 5: Solve for x
    x = 101,397,869.28/13,703.26
  6. Step 6: Final answer
    x = 7,399.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.