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Finding the Fourth Proportional to 18,481.89, 25,507.89 and 11,770.41

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Solution

The fourth proportional to 18,481.89, 25,507.89 and 11,770.41 is: 16,245.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.89 : 25,507.89 = 11,770.41 : x
  2. Step 2: Convert to fraction form
    18,481.89/25,507.89 = 11,770.41/x
  3. Step 3: Cross multiply
    18,481.89x = 25,507.89 × 11,770.41
  4. Step 4: Simplify right side
    18,481.89x = 300,238,323.53
  5. Step 5: Solve for x
    x = 300,238,323.53/18,481.89
  6. Step 6: Final answer
    x = 16,245.00

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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.