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Finding the Fourth Proportional to 5,711.08, 7,881.22 and 3,227.08

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Solution

The fourth proportional to 5,711.08, 7,881.22 and 3,227.08 is: 4,453.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.08 : 7,881.22 = 3,227.08 : x
  2. Step 2: Convert to fraction form
    5,711.08/7,881.22 = 3,227.08/x
  3. Step 3: Cross multiply
    5,711.08x = 7,881.22 × 3,227.08
  4. Step 4: Simplify right side
    5,711.08x = 25,433,327.44
  5. Step 5: Solve for x
    x = 25,433,327.44/5,711.08
  6. Step 6: Final answer
    x = 4,453.33

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.