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Finding the Fourth Proportional to 13,927.99, 20,893.94 and 4,067.99

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Solution

The fourth proportional to 13,927.99, 20,893.94 and 4,067.99 is: 6,102.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.99 : 20,893.94 = 4,067.99 : x
  2. Step 2: Convert to fraction form
    13,927.99/20,893.94 = 4,067.99/x
  3. Step 3: Cross multiply
    13,927.99x = 20,893.94 × 4,067.99
  4. Step 4: Simplify right side
    13,927.99x = 84,996,338.98
  5. Step 5: Solve for x
    x = 84,996,338.98/13,927.99
  6. Step 6: Final answer
    x = 6,102.56

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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.