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Finding the Fourth Proportional to 11,755.53, 17,622.36 and 3,958.88

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Solution

The fourth proportional to 11,755.53, 17,622.36 and 3,958.88 is: 5,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.53 : 17,622.36 = 3,958.88 : x
  2. Step 2: Convert to fraction form
    11,755.53/17,622.36 = 3,958.88/x
  3. Step 3: Cross multiply
    11,755.53x = 17,622.36 × 3,958.88
  4. Step 4: Simplify right side
    11,755.53x = 69,764,720.45
  5. Step 5: Solve for x
    x = 69,764,720.45/11,755.53
  6. Step 6: Final answer
    x = 5,934.63

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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.