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Finding the Fourth Proportional to 69,643.40, 104,481.90 and 22,893.80

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Solution

The fourth proportional to 69,643.40, 104,481.90 and 22,893.80 is: 34,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,643.40 : 104,481.90 = 22,893.80 : x
  2. Step 2: Convert to fraction form
    69,643.40/104,481.90 = 22,893.80/x
  3. Step 3: Cross multiply
    69,643.40x = 104,481.90 × 22,893.80
  4. Step 4: Simplify right side
    69,643.40x = 2,391,987,722.22
  5. Step 5: Solve for x
    x = 2,391,987,722.22/69,643.40
  6. Step 6: Final answer
    x = 34,346.22

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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.