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Finding the Fourth Proportional to 17,951.67, 26,932.30 and 15,990.73

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Solution

The fourth proportional to 17,951.67, 26,932.30 and 15,990.73 is: 23,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,951.67 : 26,932.30 = 15,990.73 : x
  2. Step 2: Convert to fraction form
    17,951.67/26,932.30 = 15,990.73/x
  3. Step 3: Cross multiply
    17,951.67x = 26,932.30 × 15,990.73
  4. Step 4: Simplify right side
    17,951.67x = 430,667,030.27
  5. Step 5: Solve for x
    x = 430,667,030.27/17,951.67
  6. Step 6: Final answer
    x = 23,990.36

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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.