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Finding the Fourth Proportional to 73,638.72, 110,471.04 and 26,956.80

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Solution

The fourth proportional to 73,638.72, 110,471.04 and 26,956.80 is: 40,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,638.72 : 110,471.04 = 26,956.80 : x
  2. Step 2: Convert to fraction form
    73,638.72/110,471.04 = 26,956.80/x
  3. Step 3: Cross multiply
    73,638.72x = 110,471.04 × 26,956.80
  4. Step 4: Simplify right side
    73,638.72x = 2,977,945,731.07
  5. Step 5: Solve for x
    x = 2,977,945,731.07/73,638.72
  6. Step 6: Final answer
    x = 40,439.94

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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.