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Finding the Fourth Proportional to 5,440.70, 8,161.05 and 4,144.70

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Solution

The fourth proportional to 5,440.70, 8,161.05 and 4,144.70 is: 6,217.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.70 : 8,161.05 = 4,144.70 : x
  2. Step 2: Convert to fraction form
    5,440.70/8,161.05 = 4,144.70/x
  3. Step 3: Cross multiply
    5,440.70x = 8,161.05 × 4,144.70
  4. Step 4: Simplify right side
    5,440.70x = 33,825,103.94
  5. Step 5: Solve for x
    x = 33,825,103.94/5,440.70
  6. Step 6: Final answer
    x = 6,217.05

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Half scale
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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.