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Finding the Fourth Proportional to 60,682.89, 91,034.76 and 18,561.96

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Solution

The fourth proportional to 60,682.89, 91,034.76 and 18,561.96 is: 27,846.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,682.89 : 91,034.76 = 18,561.96 : x
  2. Step 2: Convert to fraction form
    60,682.89/91,034.76 = 18,561.96/x
  3. Step 3: Cross multiply
    60,682.89x = 91,034.76 × 18,561.96
  4. Step 4: Simplify right side
    60,682.89x = 1,689,783,573.73
  5. Step 5: Solve for x
    x = 1,689,783,573.73/60,682.89
  6. Step 6: Final answer
    x = 27,846.13

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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.