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Finding the Fourth Proportional to 50,579.39, 75,771.72 and 31,611.44

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Solution

The fourth proportional to 50,579.39, 75,771.72 and 31,611.44 is: 47,356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,579.39 : 75,771.72 = 31,611.44 : x
  2. Step 2: Convert to fraction form
    50,579.39/75,771.72 = 31,611.44/x
  3. Step 3: Cross multiply
    50,579.39x = 75,771.72 × 31,611.44
  4. Step 4: Simplify right side
    50,579.39x = 2,395,253,022.42
  5. Step 5: Solve for x
    x = 2,395,253,022.42/50,579.39
  6. Step 6: Final answer
    x = 47,356.31

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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.