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Finding the Fourth Proportional to 36,644.70, 54,976.52 and 21,460.10

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Solution

The fourth proportional to 36,644.70, 54,976.52 and 21,460.10 is: 32,195.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,644.70 : 54,976.52 = 21,460.10 : x
  2. Step 2: Convert to fraction form
    36,644.70/54,976.52 = 21,460.10/x
  3. Step 3: Cross multiply
    36,644.70x = 54,976.52 × 21,460.10
  4. Step 4: Simplify right side
    36,644.70x = 1,179,801,395.62
  5. Step 5: Solve for x
    x = 1,179,801,395.62/36,644.70
  6. Step 6: Final answer
    x = 32,195.69

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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.