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Finding the Fourth Proportional to 65,609.44, 90,555.84 and 41,717.44

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Solution

The fourth proportional to 65,609.44, 90,555.84 and 41,717.44 is: 57,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,609.44 : 90,555.84 = 41,717.44 : x
  2. Step 2: Convert to fraction form
    65,609.44/90,555.84 = 41,717.44/x
  3. Step 3: Cross multiply
    65,609.44x = 90,555.84 × 41,717.44
  4. Step 4: Simplify right side
    65,609.44x = 3,777,757,821.85
  5. Step 5: Solve for x
    x = 3,777,757,821.85/65,609.44
  6. Step 6: Final answer
    x = 57,579.49

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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.