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Finding the Fourth Proportional to 8,964.79, 13,414.01 and 5,408.97

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Solution

The fourth proportional to 8,964.79, 13,414.01 and 5,408.97 is: 8,093.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.79 : 13,414.01 = 5,408.97 : x
  2. Step 2: Convert to fraction form
    8,964.79/13,414.01 = 5,408.97/x
  3. Step 3: Cross multiply
    8,964.79x = 13,414.01 × 5,408.97
  4. Step 4: Simplify right side
    8,964.79x = 72,555,991.19
  5. Step 5: Solve for x
    x = 72,555,991.19/8,964.79
  6. Step 6: Final answer
    x = 8,093.44

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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.