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Finding the Fourth Proportional to 26,706.96, 40,060.44 and 11,912.31

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Solution

The fourth proportional to 26,706.96, 40,060.44 and 11,912.31 is: 17,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,706.96 : 40,060.44 = 11,912.31 : x
  2. Step 2: Convert to fraction form
    26,706.96/40,060.44 = 11,912.31/x
  3. Step 3: Cross multiply
    26,706.96x = 40,060.44 × 11,912.31
  4. Step 4: Simplify right side
    26,706.96x = 477,212,380.02
  5. Step 5: Solve for x
    x = 477,212,380.02/26,706.96
  6. Step 6: Final answer
    x = 17,868.47

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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.