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Finding the Fourth Proportional to 6,830.75, 10,246.13 and 2,213.75

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Solution

The fourth proportional to 6,830.75, 10,246.13 and 2,213.75 is: 3,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,830.75 : 10,246.13 = 2,213.75 : x
  2. Step 2: Convert to fraction form
    6,830.75/10,246.13 = 2,213.75/x
  3. Step 3: Cross multiply
    6,830.75x = 10,246.13 × 2,213.75
  4. Step 4: Simplify right side
    6,830.75x = 22,682,370.29
  5. Step 5: Solve for x
    x = 22,682,370.29/6,830.75
  6. Step 6: Final answer
    x = 3,320.63

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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.