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Finding the Fourth Proportional to 8,913.28, 13,365.60 and 3,067.84

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Solution

The fourth proportional to 8,913.28, 13,365.60 and 3,067.84 is: 4,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.28 : 13,365.60 = 3,067.84 : x
  2. Step 2: Convert to fraction form
    8,913.28/13,365.60 = 3,067.84/x
  3. Step 3: Cross multiply
    8,913.28x = 13,365.60 × 3,067.84
  4. Step 4: Simplify right side
    8,913.28x = 41,003,522.30
  5. Step 5: Solve for x
    x = 41,003,522.30/8,913.28
  6. Step 6: Final answer
    x = 4,600.27

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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.