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Finding the Fourth Proportional to 41,321.40, 61,990.80 and 21,594.66

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Solution

The fourth proportional to 41,321.40, 61,990.80 and 21,594.66 is: 32,396.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,321.40 : 61,990.80 = 21,594.66 : x
  2. Step 2: Convert to fraction form
    41,321.40/61,990.80 = 21,594.66/x
  3. Step 3: Cross multiply
    41,321.40x = 61,990.80 × 21,594.66
  4. Step 4: Simplify right side
    41,321.40x = 1,338,670,249.13
  5. Step 5: Solve for x
    x = 1,338,670,249.13/41,321.40
  6. Step 6: Final answer
    x = 32,396.54

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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.