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Finding the Fourth Proportional to 57,992.81, 80,028.73 and 34,121.03

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Solution

The fourth proportional to 57,992.81, 80,028.73 and 34,121.03 is: 47,086.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,992.81 : 80,028.73 = 34,121.03 : x
  2. Step 2: Convert to fraction form
    57,992.81/80,028.73 = 34,121.03/x
  3. Step 3: Cross multiply
    57,992.81x = 80,028.73 × 34,121.03
  4. Step 4: Simplify right side
    57,992.81x = 2,730,662,811.96
  5. Step 5: Solve for x
    x = 2,730,662,811.96/57,992.81
  6. Step 6: Final answer
    x = 47,086.23

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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.