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Finding the Fourth Proportional to 57,886.07, 79,806.20 and 41,739.86

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Solution

The fourth proportional to 57,886.07, 79,806.20 and 41,739.86 is: 57,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,886.07 : 79,806.20 = 41,739.86 : x
  2. Step 2: Convert to fraction form
    57,886.07/79,806.20 = 41,739.86/x
  3. Step 3: Cross multiply
    57,886.07x = 79,806.20 × 41,739.86
  4. Step 4: Simplify right side
    57,886.07x = 3,331,099,605.95
  5. Step 5: Solve for x
    x = 3,331,099,605.95/57,886.07
  6. Step 6: Final answer
    x = 57,545.79

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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.