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Finding the Fourth Proportional to 22,221.28, 33,331.86 and 5,805.28

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Solution

The fourth proportional to 22,221.28, 33,331.86 and 5,805.28 is: 8,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.28 : 33,331.86 = 5,805.28 : x
  2. Step 2: Convert to fraction form
    22,221.28/33,331.86 = 5,805.28/x
  3. Step 3: Cross multiply
    22,221.28x = 33,331.86 × 5,805.28
  4. Step 4: Simplify right side
    22,221.28x = 193,500,780.22
  5. Step 5: Solve for x
    x = 193,500,780.22/22,221.28
  6. Step 6: Final answer
    x = 8,707.90

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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.