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Finding the Fourth Proportional to 57,993.39, 87,023.57 and 31,339.46

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Solution

The fourth proportional to 57,993.39, 87,023.57 and 31,339.46 is: 47,027.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,993.39 : 87,023.57 = 31,339.46 : x
  2. Step 2: Convert to fraction form
    57,993.39/87,023.57 = 31,339.46/x
  3. Step 3: Cross multiply
    57,993.39x = 87,023.57 × 31,339.46
  4. Step 4: Simplify right side
    57,993.39x = 2,727,271,751.93
  5. Step 5: Solve for x
    x = 2,727,271,751.93/57,993.39
  6. Step 6: Final answer
    x = 47,027.29

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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.