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Finding the Fourth Proportional to 12,896.58, 17,794.17 and 8,179.14

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Solution

The fourth proportional to 12,896.58, 17,794.17 and 8,179.14 is: 11,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.58 : 17,794.17 = 8,179.14 : x
  2. Step 2: Convert to fraction form
    12,896.58/17,794.17 = 8,179.14/x
  3. Step 3: Cross multiply
    12,896.58x = 17,794.17 × 8,179.14
  4. Step 4: Simplify right side
    12,896.58x = 145,541,007.61
  5. Step 5: Solve for x
    x = 145,541,007.61/12,896.58
  6. Step 6: Final answer
    x = 11,285.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.