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Finding the Fourth Proportional to 60,067.86, 82,896 and 39,889.95

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Solution

The fourth proportional to 60,067.86, 82,896 and 39,889.95 is: 55,049.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,067.86 : 82,896 = 39,889.95 : x
  2. Step 2: Convert to fraction form
    60,067.86/82,896 = 39,889.95/x
  3. Step 3: Cross multiply
    60,067.86x = 82,896 × 39,889.95
  4. Step 4: Simplify right side
    60,067.86x = 3,306,717,295.20
  5. Step 5: Solve for x
    x = 3,306,717,295.20/60,067.86
  6. Step 6: Final answer
    x = 55,049.69

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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.