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Finding the Fourth Proportional to 24,399.44, 33,670.94 and 13,221.44

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Solution

The fourth proportional to 24,399.44, 33,670.94 and 13,221.44 is: 18,245.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,399.44 : 33,670.94 = 13,221.44 : x
  2. Step 2: Convert to fraction form
    24,399.44/33,670.94 = 13,221.44/x
  3. Step 3: Cross multiply
    24,399.44x = 33,670.94 × 13,221.44
  4. Step 4: Simplify right side
    24,399.44x = 445,178,144.60
  5. Step 5: Solve for x
    x = 445,178,144.60/24,399.44
  6. Step 6: Final answer
    x = 18,245.43

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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.