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Finding the Fourth Proportional to 57,712.75, 79,644.93 and 36,203.41

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Solution

The fourth proportional to 57,712.75, 79,644.93 and 36,203.41 is: 49,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.75 : 79,644.93 = 36,203.41 : x
  2. Step 2: Convert to fraction form
    57,712.75/79,644.93 = 36,203.41/x
  3. Step 3: Cross multiply
    57,712.75x = 79,644.93 × 36,203.41
  4. Step 4: Simplify right side
    57,712.75x = 2,883,418,055.21
  5. Step 5: Solve for x
    x = 2,883,418,055.21/57,712.75
  6. Step 6: Final answer
    x = 49,961.54

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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.