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Finding the Fourth Proportional to 22,611.80, 33,908.10 and 10,928.60

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Solution

The fourth proportional to 22,611.80, 33,908.10 and 10,928.60 is: 16,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.80 : 33,908.10 = 10,928.60 : x
  2. Step 2: Convert to fraction form
    22,611.80/33,908.10 = 10,928.60/x
  3. Step 3: Cross multiply
    22,611.80x = 33,908.10 × 10,928.60
  4. Step 4: Simplify right side
    22,611.80x = 370,568,061.66
  5. Step 5: Solve for x
    x = 370,568,061.66/22,611.80
  6. Step 6: Final answer
    x = 16,388.26

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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.