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Finding the Fourth Proportional to 8,636.34, 12,954.99 and 2,793.41

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Solution

The fourth proportional to 8,636.34, 12,954.99 and 2,793.41 is: 4,190.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.34 : 12,954.99 = 2,793.41 : x
  2. Step 2: Convert to fraction form
    8,636.34/12,954.99 = 2,793.41/x
  3. Step 3: Cross multiply
    8,636.34x = 12,954.99 × 2,793.41
  4. Step 4: Simplify right side
    8,636.34x = 36,188,598.62
  5. Step 5: Solve for x
    x = 36,188,598.62/8,636.34
  6. Step 6: Final answer
    x = 4,190.27

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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.