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Finding the Fourth Proportional to 60,604.88, 90,912.49 and 18,494.42

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Solution

The fourth proportional to 60,604.88, 90,912.49 and 18,494.42 is: 27,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,604.88 : 90,912.49 = 18,494.42 : x
  2. Step 2: Convert to fraction form
    60,604.88/90,912.49 = 18,494.42/x
  3. Step 3: Cross multiply
    60,604.88x = 90,912.49 × 18,494.42
  4. Step 4: Simplify right side
    60,604.88x = 1,681,373,954.35
  5. Step 5: Solve for x
    x = 1,681,373,954.35/60,604.88
  6. Step 6: Final answer
    x = 27,743.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.