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Finding the Fourth Proportional to 17,796.21, 24,481.92 and 15,388.23

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Solution

The fourth proportional to 17,796.21, 24,481.92 and 15,388.23 is: 21,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,796.21 : 24,481.92 = 15,388.23 : x
  2. Step 2: Convert to fraction form
    17,796.21/24,481.92 = 15,388.23/x
  3. Step 3: Cross multiply
    17,796.21x = 24,481.92 × 15,388.23
  4. Step 4: Simplify right side
    17,796.21x = 376,733,415.80
  5. Step 5: Solve for x
    x = 376,733,415.80/17,796.21
  6. Step 6: Final answer
    x = 21,169.31

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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.