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Finding the Fourth Proportional to 69,696.33, 104,548.47 and 19,772.49

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Solution

The fourth proportional to 69,696.33, 104,548.47 and 19,772.49 is: 29,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,696.33 : 104,548.47 = 19,772.49 : x
  2. Step 2: Convert to fraction form
    69,696.33/104,548.47 = 19,772.49/x
  3. Step 3: Cross multiply
    69,696.33x = 104,548.47 × 19,772.49
  4. Step 4: Simplify right side
    69,696.33x = 2,067,183,577.59
  5. Step 5: Solve for x
    x = 2,067,183,577.59/69,696.33
  6. Step 6: Final answer
    x = 29,659.86

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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.