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Finding the Fourth Proportional to 16,723.70, 25,085.82 and 7,956.86

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Solution

The fourth proportional to 16,723.70, 25,085.82 and 7,956.86 is: 11,935.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,723.70 : 25,085.82 = 7,956.86 : x
  2. Step 2: Convert to fraction form
    16,723.70/25,085.82 = 7,956.86/x
  3. Step 3: Cross multiply
    16,723.70x = 25,085.82 × 7,956.86
  4. Step 4: Simplify right side
    16,723.70x = 199,604,357.73
  5. Step 5: Solve for x
    x = 199,604,357.73/16,723.70
  6. Step 6: Final answer
    x = 11,935.42

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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.