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Finding the Fourth Proportional to 18,119.68, 24,982.01 and 11,734.99

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Solution

The fourth proportional to 18,119.68, 24,982.01 and 11,734.99 is: 16,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.68 : 24,982.01 = 11,734.99 : x
  2. Step 2: Convert to fraction form
    18,119.68/24,982.01 = 11,734.99/x
  3. Step 3: Cross multiply
    18,119.68x = 24,982.01 × 11,734.99
  4. Step 4: Simplify right side
    18,119.68x = 293,163,578.85
  5. Step 5: Solve for x
    x = 293,163,578.85/18,119.68
  6. Step 6: Final answer
    x = 16,179.29

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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.