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Finding the Fourth Proportional to 69,964.78, 96,553.98 and 39,755.22

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Solution

The fourth proportional to 69,964.78, 96,553.98 and 39,755.22 is: 54,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,964.78 : 96,553.98 = 39,755.22 : x
  2. Step 2: Convert to fraction form
    69,964.78/96,553.98 = 39,755.22/x
  3. Step 3: Cross multiply
    69,964.78x = 96,553.98 × 39,755.22
  4. Step 4: Simplify right side
    69,964.78x = 3,838,524,716.78
  5. Step 5: Solve for x
    x = 3,838,524,716.78/69,964.78
  6. Step 6: Final answer
    x = 54,863.67

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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.