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Finding the Fourth Proportional to 66,469.82, 99,683.15 and 22,084.65

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Solution

The fourth proportional to 66,469.82, 99,683.15 and 22,084.65 is: 33,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,469.82 : 99,683.15 = 22,084.65 : x
  2. Step 2: Convert to fraction form
    66,469.82/99,683.15 = 22,084.65/x
  3. Step 3: Cross multiply
    66,469.82x = 99,683.15 × 22,084.65
  4. Step 4: Simplify right side
    66,469.82x = 2,201,467,478.65
  5. Step 5: Solve for x
    x = 2,201,467,478.65/66,469.82
  6. Step 6: Final answer
    x = 33,119.81

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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.