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Finding the Fourth Proportional to 18,257.91, 25,195.91 and 9,874.41

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Solution

The fourth proportional to 18,257.91, 25,195.91 and 9,874.41 is: 13,626.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.91 : 25,195.91 = 9,874.41 : x
  2. Step 2: Convert to fraction form
    18,257.91/25,195.91 = 9,874.41/x
  3. Step 3: Cross multiply
    18,257.91x = 25,195.91 × 9,874.41
  4. Step 4: Simplify right side
    18,257.91x = 248,794,657.35
  5. Step 5: Solve for x
    x = 248,794,657.35/18,257.91
  6. Step 6: Final answer
    x = 13,626.68

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1.5x scale

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.