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Finding the Fourth Proportional to 68,894.61, 95,067.20 and 38,683.25

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Solution

The fourth proportional to 68,894.61, 95,067.20 and 38,683.25 is: 53,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,894.61 : 95,067.20 = 38,683.25 : x
  2. Step 2: Convert to fraction form
    68,894.61/95,067.20 = 38,683.25/x
  3. Step 3: Cross multiply
    68,894.61x = 95,067.20 × 38,683.25
  4. Step 4: Simplify right side
    68,894.61x = 3,677,508,070.98
  5. Step 5: Solve for x
    x = 3,677,508,070.98/68,894.61
  6. Step 6: Final answer
    x = 53,378.75

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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.