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Finding the Fourth Proportional to 16,917.22, 25,377.05 and 5,228.92

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Solution

The fourth proportional to 16,917.22, 25,377.05 and 5,228.92 is: 7,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,917.22 : 25,377.05 = 5,228.92 : x
  2. Step 2: Convert to fraction form
    16,917.22/25,377.05 = 5,228.92/x
  3. Step 3: Cross multiply
    16,917.22x = 25,377.05 × 5,228.92
  4. Step 4: Simplify right side
    16,917.22x = 132,694,564.29
  5. Step 5: Solve for x
    x = 132,694,564.29/16,917.22
  6. Step 6: Final answer
    x = 7,843.76

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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.