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Finding the Fourth Proportional to 64,974.22, 89,664.41 and 36,679.91

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Solution

The fourth proportional to 64,974.22, 89,664.41 and 36,679.91 is: 50,618.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,974.22 : 89,664.41 = 36,679.91 : x
  2. Step 2: Convert to fraction form
    64,974.22/89,664.41 = 36,679.91/x
  3. Step 3: Cross multiply
    64,974.22x = 89,664.41 × 36,679.91
  4. Step 4: Simplify right side
    64,974.22x = 3,288,882,489.00
  5. Step 5: Solve for x
    x = 3,288,882,489.00/64,974.22
  6. Step 6: Final answer
    x = 50,618.27

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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.