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Finding the Fourth Proportional to 68,806.95, 94,957.37 and 38,601.86

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Solution

The fourth proportional to 68,806.95, 94,957.37 and 38,601.86 is: 53,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,806.95 : 94,957.37 = 38,601.86 : x
  2. Step 2: Convert to fraction form
    68,806.95/94,957.37 = 38,601.86/x
  3. Step 3: Cross multiply
    68,806.95x = 94,957.37 × 38,601.86
  4. Step 4: Simplify right side
    68,806.95x = 3,665,530,434.91
  5. Step 5: Solve for x
    x = 3,665,530,434.91/68,806.95
  6. Step 6: Final answer
    x = 53,272.68

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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.