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Finding the Fourth Proportional to 24,409.50, 33,685.20 and 13,231.50

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Solution

The fourth proportional to 24,409.50, 33,685.20 and 13,231.50 is: 18,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,409.50 : 33,685.20 = 13,231.50 : x
  2. Step 2: Convert to fraction form
    24,409.50/33,685.20 = 13,231.50/x
  3. Step 3: Cross multiply
    24,409.50x = 33,685.20 × 13,231.50
  4. Step 4: Simplify right side
    24,409.50x = 445,705,723.80
  5. Step 5: Solve for x
    x = 445,705,723.80/24,409.50
  6. Step 6: Final answer
    x = 18,259.52

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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.