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Finding the Fourth Proportional to 3,334.05, 5,001.89 and 994.04

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Solution

The fourth proportional to 3,334.05, 5,001.89 and 994.04 is: 1,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,334.05 : 5,001.89 = 994.04 : x
  2. Step 2: Convert to fraction form
    3,334.05/5,001.89 = 994.04/x
  3. Step 3: Cross multiply
    3,334.05x = 5,001.89 × 994.04
  4. Step 4: Simplify right side
    3,334.05x = 4,972,078.74
  5. Step 5: Solve for x
    x = 4,972,078.74/3,334.05
  6. Step 6: Final answer
    x = 1,491.30

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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.