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Finding the Fourth Proportional to 22,016.52, 33,015.60 and 7,221.60

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Solution

The fourth proportional to 22,016.52, 33,015.60 and 7,221.60 is: 10,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,016.52 : 33,015.60 = 7,221.60 : x
  2. Step 2: Convert to fraction form
    22,016.52/33,015.60 = 7,221.60/x
  3. Step 3: Cross multiply
    22,016.52x = 33,015.60 × 7,221.60
  4. Step 4: Simplify right side
    22,016.52x = 238,425,456.96
  5. Step 5: Solve for x
    x = 238,425,456.96/22,016.52
  6. Step 6: Final answer
    x = 10,829.39

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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.