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Finding the Fourth Proportional to 20,073.69, 29,961.12 and 17,393.30

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Solution

The fourth proportional to 20,073.69, 29,961.12 and 17,393.30 is: 25,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.69 : 29,961.12 = 17,393.30 : x
  2. Step 2: Convert to fraction form
    20,073.69/29,961.12 = 17,393.30/x
  3. Step 3: Cross multiply
    20,073.69x = 29,961.12 × 17,393.30
  4. Step 4: Simplify right side
    20,073.69x = 521,122,776.27
  5. Step 5: Solve for x
    x = 521,122,776.27/20,073.69
  6. Step 6: Final answer
    x = 25,960.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.