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Finding the Fourth Proportional to 12,660.62, 18,996.49 and 6,736.11

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Solution

The fourth proportional to 12,660.62, 18,996.49 and 6,736.11 is: 10,107.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.62 : 18,996.49 = 6,736.11 : x
  2. Step 2: Convert to fraction form
    12,660.62/18,996.49 = 6,736.11/x
  3. Step 3: Cross multiply
    12,660.62x = 18,996.49 × 6,736.11
  4. Step 4: Simplify right side
    12,660.62x = 127,962,446.25
  5. Step 5: Solve for x
    x = 127,962,446.25/12,660.62
  6. Step 6: Final answer
    x = 10,107.13

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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.