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Finding the Fourth Proportional to 8,906.41, 13,361.44 and 2,983.89

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Solution

The fourth proportional to 8,906.41, 13,361.44 and 2,983.89 is: 4,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.41 : 13,361.44 = 2,983.89 : x
  2. Step 2: Convert to fraction form
    8,906.41/13,361.44 = 2,983.89/x
  3. Step 3: Cross multiply
    8,906.41x = 13,361.44 × 2,983.89
  4. Step 4: Simplify right side
    8,906.41x = 39,869,067.20
  5. Step 5: Solve for x
    x = 39,869,067.20/8,906.41
  6. Step 6: Final answer
    x = 4,476.45

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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.