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Finding the Fourth Proportional to 57,249.95, 79,004.96 and 31,755.47

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Solution

The fourth proportional to 57,249.95, 79,004.96 and 31,755.47 is: 43,822.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,249.95 : 79,004.96 = 31,755.47 : x
  2. Step 2: Convert to fraction form
    57,249.95/79,004.96 = 31,755.47/x
  3. Step 3: Cross multiply
    57,249.95x = 79,004.96 × 31,755.47
  4. Step 4: Simplify right side
    57,249.95x = 2,508,839,083.33
  5. Step 5: Solve for x
    x = 2,508,839,083.33/57,249.95
  6. Step 6: Final answer
    x = 43,822.56

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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.