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Finding the Fourth Proportional to 26,633.70, 39,956.22 and 7,913.79

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Solution

The fourth proportional to 26,633.70, 39,956.22 and 7,913.79 is: 11,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,633.70 : 39,956.22 = 7,913.79 : x
  2. Step 2: Convert to fraction form
    26,633.70/39,956.22 = 7,913.79/x
  3. Step 3: Cross multiply
    26,633.70x = 39,956.22 × 7,913.79
  4. Step 4: Simplify right side
    26,633.70x = 316,205,134.27
  5. Step 5: Solve for x
    x = 316,205,134.27/26,633.70
  6. Step 6: Final answer
    x = 11,872.37

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1.5x scale

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.