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Finding the Fourth Proportional to 39,696.80, 59,467.34 and 23,021.80

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Solution

The fourth proportional to 39,696.80, 59,467.34 and 23,021.80 is: 34,487.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,696.80 : 59,467.34 = 23,021.80 : x
  2. Step 2: Convert to fraction form
    39,696.80/59,467.34 = 23,021.80/x
  3. Step 3: Cross multiply
    39,696.80x = 59,467.34 × 23,021.80
  4. Step 4: Simplify right side
    39,696.80x = 1,369,044,910.68
  5. Step 5: Solve for x
    x = 1,369,044,910.68/39,696.80
  6. Step 6: Final answer
    x = 34,487.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.