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Finding the Fourth Proportional to 57,481.44, 79,325.90 and 31,989.52

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Solution

The fourth proportional to 57,481.44, 79,325.90 and 31,989.52 is: 44,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,481.44 : 79,325.90 = 31,989.52 : x
  2. Step 2: Convert to fraction form
    57,481.44/79,325.90 = 31,989.52/x
  3. Step 3: Cross multiply
    57,481.44x = 79,325.90 × 31,989.52
  4. Step 4: Simplify right side
    57,481.44x = 2,537,597,464.57
  5. Step 5: Solve for x
    x = 2,537,597,464.57/57,481.44
  6. Step 6: Final answer
    x = 44,146.38

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1.5x scale

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.