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Finding the Fourth Proportional to 22,375.38, 30,883.77 and 12,949.41

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Solution

The fourth proportional to 22,375.38, 30,883.77 and 12,949.41 is: 17,873.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,375.38 : 30,883.77 = 12,949.41 : x
  2. Step 2: Convert to fraction form
    22,375.38/30,883.77 = 12,949.41/x
  3. Step 3: Cross multiply
    22,375.38x = 30,883.77 × 12,949.41
  4. Step 4: Simplify right side
    22,375.38x = 399,926,600.08
  5. Step 5: Solve for x
    x = 399,926,600.08/22,375.38
  6. Step 6: Final answer
    x = 17,873.51

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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.