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Finding the Fourth Proportional to 62,933.31, 86,850.81 and 39,067.74

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Solution

The fourth proportional to 62,933.31, 86,850.81 and 39,067.74 is: 53,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,933.31 : 86,850.81 = 39,067.74 : x
  2. Step 2: Convert to fraction form
    62,933.31/86,850.81 = 39,067.74/x
  3. Step 3: Cross multiply
    62,933.31x = 86,850.81 × 39,067.74
  4. Step 4: Simplify right side
    62,933.31x = 3,393,064,863.87
  5. Step 5: Solve for x
    x = 3,393,064,863.87/62,933.31
  6. Step 6: Final answer
    x = 53,915.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.