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Finding the Fourth Proportional to 52,512.58, 72,469.11 and 28,640.59

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Solution

The fourth proportional to 52,512.58, 72,469.11 and 28,640.59 is: 39,524.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,512.58 : 72,469.11 = 28,640.59 : x
  2. Step 2: Convert to fraction form
    52,512.58/72,469.11 = 28,640.59/x
  3. Step 3: Cross multiply
    52,512.58x = 72,469.11 × 28,640.59
  4. Step 4: Simplify right side
    52,512.58x = 2,075,558,067.17
  5. Step 5: Solve for x
    x = 2,075,558,067.17/52,512.58
  6. Step 6: Final answer
    x = 39,524.97

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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.