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Finding the Fourth Proportional to 17,181.66, 25,772.49 and 7,946.46

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Solution

The fourth proportional to 17,181.66, 25,772.49 and 7,946.46 is: 11,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,181.66 : 25,772.49 = 7,946.46 : x
  2. Step 2: Convert to fraction form
    17,181.66/25,772.49 = 7,946.46/x
  3. Step 3: Cross multiply
    17,181.66x = 25,772.49 × 7,946.46
  4. Step 4: Simplify right side
    17,181.66x = 204,800,060.89
  5. Step 5: Solve for x
    x = 204,800,060.89/17,181.66
  6. Step 6: Final answer
    x = 11,919.69

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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.