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Finding the Fourth Proportional to 6,916.49, 10,375.38 and 2,755.49

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Solution

The fourth proportional to 6,916.49, 10,375.38 and 2,755.49 is: 4,133.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.49 : 10,375.38 = 2,755.49 : x
  2. Step 2: Convert to fraction form
    6,916.49/10,375.38 = 2,755.49/x
  3. Step 3: Cross multiply
    6,916.49x = 10,375.38 × 2,755.49
  4. Step 4: Simplify right side
    6,916.49x = 28,589,255.84
  5. Step 5: Solve for x
    x = 28,589,255.84/6,916.49
  6. Step 6: Final answer
    x = 4,133.49

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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.