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Finding the Fourth Proportional to 8,902.88, 13,356.20 and 3,356.11

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Solution

The fourth proportional to 8,902.88, 13,356.20 and 3,356.11 is: 5,034.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.88 : 13,356.20 = 3,356.11 : x
  2. Step 2: Convert to fraction form
    8,902.88/13,356.20 = 3,356.11/x
  3. Step 3: Cross multiply
    8,902.88x = 13,356.20 × 3,356.11
  4. Step 4: Simplify right side
    8,902.88x = 44,824,876.38
  5. Step 5: Solve for x
    x = 44,824,876.38/8,902.88
  6. Step 6: Final answer
    x = 5,034.87

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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.