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Finding the Fourth Proportional to 53,806.60, 80,711.94 and 27,480.59

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Solution

The fourth proportional to 53,806.60, 80,711.94 and 27,480.59 is: 41,221.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,806.60 : 80,711.94 = 27,480.59 : x
  2. Step 2: Convert to fraction form
    53,806.60/80,711.94 = 27,480.59/x
  3. Step 3: Cross multiply
    53,806.60x = 80,711.94 × 27,480.59
  4. Step 4: Simplify right side
    53,806.60x = 2,218,011,190.28
  5. Step 5: Solve for x
    x = 2,218,011,190.28/53,806.60
  6. Step 6: Final answer
    x = 41,221.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.