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Finding the Fourth Proportional to 69,424, 104,136.30 and 16,833.58

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Solution

The fourth proportional to 69,424, 104,136.30 and 16,833.58 is: 25,250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,424 : 104,136.30 = 16,833.58 : x
  2. Step 2: Convert to fraction form
    69,424/104,136.30 = 16,833.58/x
  3. Step 3: Cross multiply
    69,424x = 104,136.30 × 16,833.58
  4. Step 4: Simplify right side
    69,424x = 1,752,986,736.95
  5. Step 5: Solve for x
    x = 1,752,986,736.95/69,424
  6. Step 6: Final answer
    x = 25,250.44

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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.