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Finding the Fourth Proportional to 69,611.55, 104,429.24 and 27,469.64

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Solution

The fourth proportional to 69,611.55, 104,429.24 and 27,469.64 is: 41,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,611.55 : 104,429.24 = 27,469.64 : x
  2. Step 2: Convert to fraction form
    69,611.55/104,429.24 = 27,469.64/x
  3. Step 3: Cross multiply
    69,611.55x = 104,429.24 × 27,469.64
  4. Step 4: Simplify right side
    69,611.55x = 2,868,632,968.78
  5. Step 5: Solve for x
    x = 2,868,632,968.78/69,611.55
  6. Step 6: Final answer
    x = 41,209.15

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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.