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Finding the Fourth Proportional to 41,878.53, 62,804.27 and 13,791.90

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Solution

The fourth proportional to 41,878.53, 62,804.27 and 13,791.90 is: 20,683.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,878.53 : 62,804.27 = 13,791.90 : x
  2. Step 2: Convert to fraction form
    41,878.53/62,804.27 = 13,791.90/x
  3. Step 3: Cross multiply
    41,878.53x = 62,804.27 × 13,791.90
  4. Step 4: Simplify right side
    41,878.53x = 866,190,142.45
  5. Step 5: Solve for x
    x = 866,190,142.45/41,878.53
  6. Step 6: Final answer
    x = 20,683.39

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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.