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Finding the Fourth Proportional to 64,738.88, 89,338.26 and 36,058.44

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Solution

The fourth proportional to 64,738.88, 89,338.26 and 36,058.44 is: 49,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,738.88 : 89,338.26 = 36,058.44 : x
  2. Step 2: Convert to fraction form
    64,738.88/89,338.26 = 36,058.44/x
  3. Step 3: Cross multiply
    64,738.88x = 89,338.26 × 36,058.44
  4. Step 4: Simplify right side
    64,738.88x = 3,221,398,287.91
  5. Step 5: Solve for x
    x = 3,221,398,287.91/64,738.88
  6. Step 6: Final answer
    x = 49,759.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.