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Finding the Fourth Proportional to 8,908.76, 13,362.66 and 3,361.97

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Solution

The fourth proportional to 8,908.76, 13,362.66 and 3,361.97 is: 5,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.76 : 13,362.66 = 3,361.97 : x
  2. Step 2: Convert to fraction form
    8,908.76/13,362.66 = 3,361.97/x
  3. Step 3: Cross multiply
    8,908.76x = 13,362.66 × 3,361.97
  4. Step 4: Simplify right side
    8,908.76x = 44,924,895.45
  5. Step 5: Solve for x
    x = 44,924,895.45/8,908.76
  6. Step 6: Final answer
    x = 5,042.78

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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.