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Finding the Fourth Proportional to 24,399.64, 33,671.48 and 13,221.64

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Solution

The fourth proportional to 24,399.64, 33,671.48 and 13,221.64 is: 18,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,399.64 : 33,671.48 = 13,221.64 : x
  2. Step 2: Convert to fraction form
    24,399.64/33,671.48 = 13,221.64/x
  3. Step 3: Cross multiply
    24,399.64x = 33,671.48 × 13,221.64
  4. Step 4: Simplify right side
    24,399.64x = 445,192,186.83
  5. Step 5: Solve for x
    x = 445,192,186.83/24,399.64
  6. Step 6: Final answer
    x = 18,245.85

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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.