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Finding the Fourth Proportional to 69,462.48, 104,208.10 and 27,912.72

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Solution

The fourth proportional to 69,462.48, 104,208.10 and 27,912.72 is: 41,874.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,462.48 : 104,208.10 = 27,912.72 : x
  2. Step 2: Convert to fraction form
    69,462.48/104,208.10 = 27,912.72/x
  3. Step 3: Cross multiply
    69,462.48x = 104,208.10 × 27,912.72
  4. Step 4: Simplify right side
    69,462.48x = 2,908,731,517.03
  5. Step 5: Solve for x
    x = 2,908,731,517.03/69,462.48
  6. Step 6: Final answer
    x = 41,874.86

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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.