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Finding the Fourth Proportional to 7,371.96, 11,061.78 and 3,267

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Solution

The fourth proportional to 7,371.96, 11,061.78 and 3,267 is: 4,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.96 : 11,061.78 = 3,267 : x
  2. Step 2: Convert to fraction form
    7,371.96/11,061.78 = 3,267/x
  3. Step 3: Cross multiply
    7,371.96x = 11,061.78 × 3,267
  4. Step 4: Simplify right side
    7,371.96x = 36,138,835.26
  5. Step 5: Solve for x
    x = 36,138,835.26/7,371.96
  6. Step 6: Final answer
    x = 4,902.20

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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.