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Finding the Fourth Proportional to 65,789.97, 90,790.66 and 36,322.62

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Solution

The fourth proportional to 65,789.97, 90,790.66 and 36,322.62 is: 50,125.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,789.97 : 90,790.66 = 36,322.62 : x
  2. Step 2: Convert to fraction form
    65,789.97/90,790.66 = 36,322.62/x
  3. Step 3: Cross multiply
    65,789.97x = 90,790.66 × 36,322.62
  4. Step 4: Simplify right side
    65,789.97x = 3,297,754,642.73
  5. Step 5: Solve for x
    x = 3,297,754,642.73/65,789.97
  6. Step 6: Final answer
    x = 50,125.49

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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.