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Finding the Fourth Proportional to 3,168.86, 4,372.14 and 1,824.41

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Solution

The fourth proportional to 3,168.86, 4,372.14 and 1,824.41 is: 2,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.86 : 4,372.14 = 1,824.41 : x
  2. Step 2: Convert to fraction form
    3,168.86/4,372.14 = 1,824.41/x
  3. Step 3: Cross multiply
    3,168.86x = 4,372.14 × 1,824.41
  4. Step 4: Simplify right side
    3,168.86x = 7,976,554.08
  5. Step 5: Solve for x
    x = 7,976,554.08/3,168.86
  6. Step 6: Final answer
    x = 2,517.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.