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Finding the Fourth Proportional to 31,956.70, 44,100.41 and 18,535.88

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Solution

The fourth proportional to 31,956.70, 44,100.41 and 18,535.88 is: 25,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,956.70 : 44,100.41 = 18,535.88 : x
  2. Step 2: Convert to fraction form
    31,956.70/44,100.41 = 18,535.88/x
  3. Step 3: Cross multiply
    31,956.70x = 44,100.41 × 18,535.88
  4. Step 4: Simplify right side
    31,956.70x = 817,439,815.03
  5. Step 5: Solve for x
    x = 817,439,815.03/31,956.70
  6. Step 6: Final answer
    x = 25,579.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.