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Finding the Fourth Proportional to 3,308.99, 4,963.49 and 2,579.12

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Solution

The fourth proportional to 3,308.99, 4,963.49 and 2,579.12 is: 3,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.99 : 4,963.49 = 2,579.12 : x
  2. Step 2: Convert to fraction form
    3,308.99/4,963.49 = 2,579.12/x
  3. Step 3: Cross multiply
    3,308.99x = 4,963.49 × 2,579.12
  4. Step 4: Simplify right side
    3,308.99x = 12,801,398.62
  5. Step 5: Solve for x
    x = 12,801,398.62/3,308.99
  6. Step 6: Final answer
    x = 3,868.67

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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.