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Finding the Fourth Proportional to 69,720.62, 104,587.81 and 22,323.77

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Solution

The fourth proportional to 69,720.62, 104,587.81 and 22,323.77 is: 33,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,720.62 : 104,587.81 = 22,323.77 : x
  2. Step 2: Convert to fraction form
    69,720.62/104,587.81 = 22,323.77/x
  3. Step 3: Cross multiply
    69,720.62x = 104,587.81 × 22,323.77
  4. Step 4: Simplify right side
    69,720.62x = 2,334,794,028.70
  5. Step 5: Solve for x
    x = 2,334,794,028.70/69,720.62
  6. Step 6: Final answer
    x = 33,487.86

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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.