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Finding the Fourth Proportional to 66,458.44, 91,712.34 and 36,650.44

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Solution

The fourth proportional to 66,458.44, 91,712.34 and 36,650.44 is: 50,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,458.44 : 91,712.34 = 36,650.44 : x
  2. Step 2: Convert to fraction form
    66,458.44/91,712.34 = 36,650.44/x
  3. Step 3: Cross multiply
    66,458.44x = 91,712.34 × 36,650.44
  4. Step 4: Simplify right side
    66,458.44x = 3,361,297,614.43
  5. Step 5: Solve for x
    x = 3,361,297,614.43/66,458.44
  6. Step 6: Final answer
    x = 50,577.44

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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.