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Finding the Fourth Proportional to 41,086.60, 61,611.90 and 18,892.60

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Solution

The fourth proportional to 41,086.60, 61,611.90 and 18,892.60 is: 28,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,086.60 : 61,611.90 = 18,892.60 : x
  2. Step 2: Convert to fraction form
    41,086.60/61,611.90 = 18,892.60/x
  3. Step 3: Cross multiply
    41,086.60x = 61,611.90 × 18,892.60
  4. Step 4: Simplify right side
    41,086.60x = 1,164,008,981.94
  5. Step 5: Solve for x
    x = 1,164,008,981.94/41,086.60
  6. Step 6: Final answer
    x = 28,330.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.