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Finding the Fourth Proportional to 18,584.90, 25,611.72 and 18,243.30

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Solution

The fourth proportional to 18,584.90, 25,611.72 and 18,243.30 is: 25,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,584.90 : 25,611.72 = 18,243.30 : x
  2. Step 2: Convert to fraction form
    18,584.90/25,611.72 = 18,243.30/x
  3. Step 3: Cross multiply
    18,584.90x = 25,611.72 × 18,243.30
  4. Step 4: Simplify right side
    18,584.90x = 467,242,291.48
  5. Step 5: Solve for x
    x = 467,242,291.48/18,584.90
  6. Step 6: Final answer
    x = 25,140.97

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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.