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Finding the Fourth Proportional to 26,956.41, 40,440 and 8,239.11

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Solution

The fourth proportional to 26,956.41, 40,440 and 8,239.11 is: 12,360.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,956.41 : 40,440 = 8,239.11 : x
  2. Step 2: Convert to fraction form
    26,956.41/40,440 = 8,239.11/x
  3. Step 3: Cross multiply
    26,956.41x = 40,440 × 8,239.11
  4. Step 4: Simplify right side
    26,956.41x = 333,189,608.40
  5. Step 5: Solve for x
    x = 333,189,608.40/26,956.41
  6. Step 6: Final answer
    x = 12,360.31

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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.