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Finding the Fourth Proportional to 9,325.28, 13,979.28 and 3,477.44

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Solution

The fourth proportional to 9,325.28, 13,979.28 and 3,477.44 is: 5,212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.28 : 13,979.28 = 3,477.44 : x
  2. Step 2: Convert to fraction form
    9,325.28/13,979.28 = 3,477.44/x
  3. Step 3: Cross multiply
    9,325.28x = 13,979.28 × 3,477.44
  4. Step 4: Simplify right side
    9,325.28x = 48,612,107.44
  5. Step 5: Solve for x
    x = 48,612,107.44/9,325.28
  6. Step 6: Final answer
    x = 5,212.94

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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.