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Finding the Fourth Proportional to 22,419.14, 33,620.86 and 6,619.96

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Solution

The fourth proportional to 22,419.14, 33,620.86 and 6,619.96 is: 9,927.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,419.14 : 33,620.86 = 6,619.96 : x
  2. Step 2: Convert to fraction form
    22,419.14/33,620.86 = 6,619.96/x
  3. Step 3: Cross multiply
    22,419.14x = 33,620.86 × 6,619.96
  4. Step 4: Simplify right side
    22,419.14x = 222,568,748.37
  5. Step 5: Solve for x
    x = 222,568,748.37/22,419.14
  6. Step 6: Final answer
    x = 9,927.62

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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.