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Finding the Fourth Proportional to 6,644.92, 9,965.22 and 3,134.44

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Solution

The fourth proportional to 6,644.92, 9,965.22 and 3,134.44 is: 4,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.92 : 9,965.22 = 3,134.44 : x
  2. Step 2: Convert to fraction form
    6,644.92/9,965.22 = 3,134.44/x
  3. Step 3: Cross multiply
    6,644.92x = 9,965.22 × 3,134.44
  4. Step 4: Simplify right side
    6,644.92x = 31,235,384.18
  5. Step 5: Solve for x
    x = 31,235,384.18/6,644.92
  6. Step 6: Final answer
    x = 4,700.64

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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.