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Finding the Fourth Proportional to 7,063.56, 9,747.69 and 3,876.91

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Solution

The fourth proportional to 7,063.56, 9,747.69 and 3,876.91 is: 5,350.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.56 : 9,747.69 = 3,876.91 : x
  2. Step 2: Convert to fraction form
    7,063.56/9,747.69 = 3,876.91/x
  3. Step 3: Cross multiply
    7,063.56x = 9,747.69 × 3,876.91
  4. Step 4: Simplify right side
    7,063.56x = 37,790,916.84
  5. Step 5: Solve for x
    x = 37,790,916.84/7,063.56
  6. Step 6: Final answer
    x = 5,350.12

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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.