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Finding the Fourth Proportional to 65,912.88, 90,964.44 and 37,622.82

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Solution

The fourth proportional to 65,912.88, 90,964.44 and 37,622.82 is: 51,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,912.88 : 90,964.44 = 37,622.82 : x
  2. Step 2: Convert to fraction form
    65,912.88/90,964.44 = 37,622.82/x
  3. Step 3: Cross multiply
    65,912.88x = 90,964.44 × 37,622.82
  4. Step 4: Simplify right side
    65,912.88x = 3,422,338,752.52
  5. Step 5: Solve for x
    x = 3,422,338,752.52/65,912.88
  6. Step 6: Final answer
    x = 51,922.15

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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.