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Finding the Fourth Proportional to 8,794.25, 13,190.90 and 2,220.49

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Solution

The fourth proportional to 8,794.25, 13,190.90 and 2,220.49 is: 3,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794.25 : 13,190.90 = 2,220.49 : x
  2. Step 2: Convert to fraction form
    8,794.25/13,190.90 = 2,220.49/x
  3. Step 3: Cross multiply
    8,794.25x = 13,190.90 × 2,220.49
  4. Step 4: Simplify right side
    8,794.25x = 29,290,261.54
  5. Step 5: Solve for x
    x = 29,290,261.54/8,794.25
  6. Step 6: Final answer
    x = 3,330.62

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Double scale
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Similar ratio
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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.