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Finding the Fourth Proportional to 57,872.43, 79,840.44 and 37,722.24

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Solution

The fourth proportional to 57,872.43, 79,840.44 and 37,722.24 is: 52,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,872.43 : 79,840.44 = 37,722.24 : x
  2. Step 2: Convert to fraction form
    57,872.43/79,840.44 = 37,722.24/x
  3. Step 3: Cross multiply
    57,872.43x = 79,840.44 × 37,722.24
  4. Step 4: Simplify right side
    57,872.43x = 3,011,760,239.39
  5. Step 5: Solve for x
    x = 3,011,760,239.39/57,872.43
  6. Step 6: Final answer
    x = 52,041.36

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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.