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Finding the Fourth Proportional to 69,992.15, 105,003.11 and 22,609.96

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Solution

The fourth proportional to 69,992.15, 105,003.11 and 22,609.96 is: 33,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,992.15 : 105,003.11 = 22,609.96 : x
  2. Step 2: Convert to fraction form
    69,992.15/105,003.11 = 22,609.96/x
  3. Step 3: Cross multiply
    69,992.15x = 105,003.11 × 22,609.96
  4. Step 4: Simplify right side
    69,992.15x = 2,374,116,142.72
  5. Step 5: Solve for x
    x = 2,374,116,142.72/69,992.15
  6. Step 6: Final answer
    x = 33,919.75

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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.