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Finding the Fourth Proportional to 7,388.88, 11,086.20 and 3,282

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Solution

The fourth proportional to 7,388.88, 11,086.20 and 3,282 is: 4,924.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.88 : 11,086.20 = 3,282 : x
  2. Step 2: Convert to fraction form
    7,388.88/11,086.20 = 3,282/x
  3. Step 3: Cross multiply
    7,388.88x = 11,086.20 × 3,282
  4. Step 4: Simplify right side
    7,388.88x = 36,384,908.40
  5. Step 5: Solve for x
    x = 36,384,908.40/7,388.88
  6. Step 6: Final answer
    x = 4,924.28

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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.