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Finding the Fourth Proportional to 41,396.70, 56,754.69 and 40,650.60

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Solution

The fourth proportional to 41,396.70, 56,754.69 and 40,650.60 is: 55,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,396.70 : 56,754.69 = 40,650.60 : x
  2. Step 2: Convert to fraction form
    41,396.70/56,754.69 = 40,650.60/x
  3. Step 3: Cross multiply
    41,396.70x = 56,754.69 × 40,650.60
  4. Step 4: Simplify right side
    41,396.70x = 2,307,112,201.31
  5. Step 5: Solve for x
    x = 2,307,112,201.31/41,396.70
  6. Step 6: Final answer
    x = 55,731.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.