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Finding the Fourth Proportional to 35,491.26, 53,236.92 and 19,919.82

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Solution

The fourth proportional to 35,491.26, 53,236.92 and 19,919.82 is: 29,879.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491.26 : 53,236.92 = 19,919.82 : x
  2. Step 2: Convert to fraction form
    35,491.26/53,236.92 = 19,919.82/x
  3. Step 3: Cross multiply
    35,491.26x = 53,236.92 × 19,919.82
  4. Step 4: Simplify right side
    35,491.26x = 1,060,469,863.75
  5. Step 5: Solve for x
    x = 1,060,469,863.75/35,491.26
  6. Step 6: Final answer
    x = 29,879.75

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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.