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Finding the Fourth Proportional to 30,369.36, 41,909.76 and 16,940.26

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Solution

The fourth proportional to 30,369.36, 41,909.76 and 16,940.26 is: 23,377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369.36 : 41,909.76 = 16,940.26 : x
  2. Step 2: Convert to fraction form
    30,369.36/41,909.76 = 16,940.26/x
  3. Step 3: Cross multiply
    30,369.36x = 41,909.76 × 16,940.26
  4. Step 4: Simplify right side
    30,369.36x = 709,962,230.94
  5. Step 5: Solve for x
    x = 709,962,230.94/30,369.36
  6. Step 6: Final answer
    x = 23,377.58

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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.