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Finding the Fourth Proportional to 57,951.79, 86,940.18 and 17,969.97

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Solution

The fourth proportional to 57,951.79, 86,940.18 and 17,969.97 is: 26,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,951.79 : 86,940.18 = 17,969.97 : x
  2. Step 2: Convert to fraction form
    57,951.79/86,940.18 = 17,969.97/x
  3. Step 3: Cross multiply
    57,951.79x = 86,940.18 × 17,969.97
  4. Step 4: Simplify right side
    57,951.79x = 1,562,312,336.54
  5. Step 5: Solve for x
    x = 1,562,312,336.54/57,951.79
  6. Step 6: Final answer
    x = 26,958.83

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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.