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Finding the Fourth Proportional to 8,863.69, 13,296.26 and 3,240.73

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Solution

The fourth proportional to 8,863.69, 13,296.26 and 3,240.73 is: 4,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.69 : 13,296.26 = 3,240.73 : x
  2. Step 2: Convert to fraction form
    8,863.69/13,296.26 = 3,240.73/x
  3. Step 3: Cross multiply
    8,863.69x = 13,296.26 × 3,240.73
  4. Step 4: Simplify right side
    8,863.69x = 43,089,572.47
  5. Step 5: Solve for x
    x = 43,089,572.47/8,863.69
  6. Step 6: Final answer
    x = 4,861.36

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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.