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Finding the Fourth Proportional to 37,642.87, 56,805.92 and 36,388.09

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Solution

The fourth proportional to 37,642.87, 56,805.92 and 36,388.09 is: 54,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,642.87 : 56,805.92 = 36,388.09 : x
  2. Step 2: Convert to fraction form
    37,642.87/56,805.92 = 36,388.09/x
  3. Step 3: Cross multiply
    37,642.87x = 56,805.92 × 36,388.09
  4. Step 4: Simplify right side
    37,642.87x = 2,067,058,929.49
  5. Step 5: Solve for x
    x = 2,067,058,929.49/37,642.87
  6. Step 6: Final answer
    x = 54,912.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.