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Finding the Fourth Proportional to 17,959.72, 26,922.30 and 9,198.76

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Solution

The fourth proportional to 17,959.72, 26,922.30 and 9,198.76 is: 13,789.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,959.72 : 26,922.30 = 9,198.76 : x
  2. Step 2: Convert to fraction form
    17,959.72/26,922.30 = 9,198.76/x
  3. Step 3: Cross multiply
    17,959.72x = 26,922.30 × 9,198.76
  4. Step 4: Simplify right side
    17,959.72x = 247,651,776.35
  5. Step 5: Solve for x
    x = 247,651,776.35/17,959.72
  6. Step 6: Final answer
    x = 13,789.29

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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.