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Finding the Fourth Proportional to 69,858.66, 104,794.23 and 19,937.82

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Solution

The fourth proportional to 69,858.66, 104,794.23 and 19,937.82 is: 29,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,858.66 : 104,794.23 = 19,937.82 : x
  2. Step 2: Convert to fraction form
    69,858.66/104,794.23 = 19,937.82/x
  3. Step 3: Cross multiply
    69,858.66x = 104,794.23 × 19,937.82
  4. Step 4: Simplify right side
    69,858.66x = 2,089,368,494.78
  5. Step 5: Solve for x
    x = 2,089,368,494.78/69,858.66
  6. Step 6: Final answer
    x = 29,908.51

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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.