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Finding the Fourth Proportional to 18,102.26, 24,981.07 and 11,028.68

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Solution

The fourth proportional to 18,102.26, 24,981.07 and 11,028.68 is: 15,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.26 : 24,981.07 = 11,028.68 : x
  2. Step 2: Convert to fraction form
    18,102.26/24,981.07 = 11,028.68/x
  3. Step 3: Cross multiply
    18,102.26x = 24,981.07 × 11,028.68
  4. Step 4: Simplify right side
    18,102.26x = 275,508,227.09
  5. Step 5: Solve for x
    x = 275,508,227.09/18,102.26
  6. Step 6: Final answer
    x = 15,219.55

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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.