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Finding the Fourth Proportional to 24,399.62, 33,671.50 and 13,221.62

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Solution

The fourth proportional to 24,399.62, 33,671.50 and 13,221.62 is: 18,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,399.62 : 33,671.50 = 13,221.62 : x
  2. Step 2: Convert to fraction form
    24,399.62/33,671.50 = 13,221.62/x
  3. Step 3: Cross multiply
    24,399.62x = 33,671.50 × 13,221.62
  4. Step 4: Simplify right side
    24,399.62x = 445,191,777.83
  5. Step 5: Solve for x
    x = 445,191,777.83/24,399.62
  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.