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Finding the Fourth Proportional to 38,893.66, 58,343.37 and 11,193.82

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Solution

The fourth proportional to 38,893.66, 58,343.37 and 11,193.82 is: 16,791.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,893.66 : 58,343.37 = 11,193.82 : x
  2. Step 2: Convert to fraction form
    38,893.66/58,343.37 = 11,193.82/x
  3. Step 3: Cross multiply
    38,893.66x = 58,343.37 × 11,193.82
  4. Step 4: Simplify right side
    38,893.66x = 653,085,181.97
  5. Step 5: Solve for x
    x = 653,085,181.97/38,893.66
  6. Step 6: Final answer
    x = 16,791.56

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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.