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Finding the Fourth Proportional to 41,876.40, 62,814.60 and 18,490.80

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Solution

The fourth proportional to 41,876.40, 62,814.60 and 18,490.80 is: 27,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,876.40 : 62,814.60 = 18,490.80 : x
  2. Step 2: Convert to fraction form
    41,876.40/62,814.60 = 18,490.80/x
  3. Step 3: Cross multiply
    41,876.40x = 62,814.60 × 18,490.80
  4. Step 4: Simplify right side
    41,876.40x = 1,161,492,205.68
  5. Step 5: Solve for x
    x = 1,161,492,205.68/41,876.40
  6. Step 6: Final answer
    x = 27,736.20

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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.