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Finding the Fourth Proportional to 60,872.36, 91,279.78 and 35,579.12

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Solution

The fourth proportional to 60,872.36, 91,279.78 and 35,579.12 is: 53,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,872.36 : 91,279.78 = 35,579.12 : x
  2. Step 2: Convert to fraction form
    60,872.36/91,279.78 = 35,579.12/x
  3. Step 3: Cross multiply
    60,872.36x = 91,279.78 × 35,579.12
  4. Step 4: Simplify right side
    60,872.36x = 3,247,653,700.85
  5. Step 5: Solve for x
    x = 3,247,653,700.85/60,872.36
  6. Step 6: Final answer
    x = 53,351.87

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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.