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Finding the Fourth Proportional to 20,028.86, 30,073.86 and 16,949.24

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Solution

The fourth proportional to 20,028.86, 30,073.86 and 16,949.24 is: 25,449.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.86 : 30,073.86 = 16,949.24 : x
  2. Step 2: Convert to fraction form
    20,028.86/30,073.86 = 16,949.24/x
  3. Step 3: Cross multiply
    20,028.86x = 30,073.86 × 16,949.24
  4. Step 4: Simplify right side
    20,028.86x = 509,728,920.50
  5. Step 5: Solve for x
    x = 509,728,920.50/20,028.86
  6. Step 6: Final answer
    x = 25,449.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.