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Finding the Fourth Proportional to 64,664.88, 89,236.58 and 36,370.59

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Solution

The fourth proportional to 64,664.88, 89,236.58 and 36,370.59 is: 50,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,664.88 : 89,236.58 = 36,370.59 : x
  2. Step 2: Convert to fraction form
    64,664.88/89,236.58 = 36,370.59/x
  3. Step 3: Cross multiply
    64,664.88x = 89,236.58 × 36,370.59
  4. Step 4: Simplify right side
    64,664.88x = 3,245,586,882.33
  5. Step 5: Solve for x
    x = 3,245,586,882.33/64,664.88
  6. Step 6: Final answer
    x = 50,190.87

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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.