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Finding the Fourth Proportional to 18,912.26, 26,098.71 and 10,414.22

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Solution

The fourth proportional to 18,912.26, 26,098.71 and 10,414.22 is: 14,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.26 : 26,098.71 = 10,414.22 : x
  2. Step 2: Convert to fraction form
    18,912.26/26,098.71 = 10,414.22/x
  3. Step 3: Cross multiply
    18,912.26x = 26,098.71 × 10,414.22
  4. Step 4: Simplify right side
    18,912.26x = 271,797,577.16
  5. Step 5: Solve for x
    x = 271,797,577.16/18,912.26
  6. Step 6: Final answer
    x = 14,371.51

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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.