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Finding the Fourth Proportional to 11,995,940.60, 17,993,910.90 and 8,984,441.60

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Solution

The fourth proportional to 11,995,940.60, 17,993,910.90 and 8,984,441.60 is: 13,476,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995,940.60 : 17,993,910.90 = 8,984,441.60 : x
  2. Step 2: Convert to fraction form
    11,995,940.60/17,993,910.90 = 8,984,441.60/x
  3. Step 3: Cross multiply
    11,995,940.60x = 17,993,910.90 × 8,984,441.60
  4. Step 4: Simplify right side
    11,995,940.60x = 161,665,241,636,653.41
  5. Step 5: Solve for x
    x = 161,665,241,636,653.41/11,995,940.60
  6. Step 6: Final answer
    x = 13,476,662.40

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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.