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Finding the Fourth Proportional to 59,859.40, 82,640.36 and 39,743.44

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Solution

The fourth proportional to 59,859.40, 82,640.36 and 39,743.44 is: 54,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,859.40 : 82,640.36 = 39,743.44 : x
  2. Step 2: Convert to fraction form
    59,859.40/82,640.36 = 39,743.44/x
  3. Step 3: Cross multiply
    59,859.40x = 82,640.36 × 39,743.44
  4. Step 4: Simplify right side
    59,859.40x = 3,284,412,189.24
  5. Step 5: Solve for x
    x = 3,284,412,189.24/59,859.40
  6. Step 6: Final answer
    x = 54,868.78

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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.