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Finding the Fourth Proportional to 11,198.82, 16,798.23 and 7,951.12

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Solution

The fourth proportional to 11,198.82, 16,798.23 and 7,951.12 is: 11,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,198.82 : 16,798.23 = 7,951.12 : x
  2. Step 2: Convert to fraction form
    11,198.82/16,798.23 = 7,951.12/x
  3. Step 3: Cross multiply
    11,198.82x = 16,798.23 × 7,951.12
  4. Step 4: Simplify right side
    11,198.82x = 133,564,702.76
  5. Step 5: Solve for x
    x = 133,564,702.76/11,198.82
  6. Step 6: Final answer
    x = 11,926.68

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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.