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Finding the Fourth Proportional to 20,467.44, 30,698.12 and 5,674.82

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Solution

The fourth proportional to 20,467.44, 30,698.12 and 5,674.82 is: 8,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.44 : 30,698.12 = 5,674.82 : x
  2. Step 2: Convert to fraction form
    20,467.44/30,698.12 = 5,674.82/x
  3. Step 3: Cross multiply
    20,467.44x = 30,698.12 × 5,674.82
  4. Step 4: Simplify right side
    20,467.44x = 174,206,166.03
  5. Step 5: Solve for x
    x = 174,206,166.03/20,467.44
  6. Step 6: Final answer
    x = 8,511.38

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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.