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Finding the Fourth Proportional to 18,184.50, 25,094.88 and 11,109.42

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Solution

The fourth proportional to 18,184.50, 25,094.88 and 11,109.42 is: 15,331.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,184.50 : 25,094.88 = 11,109.42 : x
  2. Step 2: Convert to fraction form
    18,184.50/25,094.88 = 11,109.42/x
  3. Step 3: Cross multiply
    18,184.50x = 25,094.88 × 11,109.42
  4. Step 4: Simplify right side
    18,184.50x = 278,789,561.77
  5. Step 5: Solve for x
    x = 278,789,561.77/18,184.50
  6. Step 6: Final answer
    x = 15,331.16

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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.