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Finding the Fourth Proportional to 8,796.36, 13,194.54 and 8,213.16

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Solution

The fourth proportional to 8,796.36, 13,194.54 and 8,213.16 is: 12,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.36 : 13,194.54 = 8,213.16 : x
  2. Step 2: Convert to fraction form
    8,796.36/13,194.54 = 8,213.16/x
  3. Step 3: Cross multiply
    8,796.36x = 13,194.54 × 8,213.16
  4. Step 4: Simplify right side
    8,796.36x = 108,368,868.15
  5. Step 5: Solve for x
    x = 108,368,868.15/8,796.36
  6. Step 6: Final answer
    x = 12,319.74

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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.