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Finding the Fourth Proportional to 8,486.75, 12,730.17 and 2,330.75

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Solution

The fourth proportional to 8,486.75, 12,730.17 and 2,330.75 is: 3,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.75 : 12,730.17 = 2,330.75 : x
  2. Step 2: Convert to fraction form
    8,486.75/12,730.17 = 2,330.75/x
  3. Step 3: Cross multiply
    8,486.75x = 12,730.17 × 2,330.75
  4. Step 4: Simplify right side
    8,486.75x = 29,670,843.73
  5. Step 5: Solve for x
    x = 29,670,843.73/8,486.75
  6. Step 6: Final answer
    x = 3,496.14

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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.