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Finding the Fourth Proportional to 22,192.40, 33,293.40 and 6,611.60

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Solution

The fourth proportional to 22,192.40, 33,293.40 and 6,611.60 is: 9,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,192.40 : 33,293.40 = 6,611.60 : x
  2. Step 2: Convert to fraction form
    22,192.40/33,293.40 = 6,611.60/x
  3. Step 3: Cross multiply
    22,192.40x = 33,293.40 × 6,611.60
  4. Step 4: Simplify right side
    22,192.40x = 220,122,643.44
  5. Step 5: Solve for x
    x = 220,122,643.44/22,192.40
  6. Step 6: Final answer
    x = 9,918.83

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1.5x scale

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.