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Finding the Fourth Proportional to 18,523.99, 25,555.89 and 11,808.46

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Solution

The fourth proportional to 18,523.99, 25,555.89 and 11,808.46 is: 16,291.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.99 : 25,555.89 = 11,808.46 : x
  2. Step 2: Convert to fraction form
    18,523.99/25,555.89 = 11,808.46/x
  3. Step 3: Cross multiply
    18,523.99x = 25,555.89 × 11,808.46
  4. Step 4: Simplify right side
    18,523.99x = 301,775,704.83
  5. Step 5: Solve for x
    x = 301,775,704.83/18,523.99
  6. Step 6: Final answer
    x = 16,291.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.