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Finding the Fourth Proportional to 7,292.97, 10,930.28 and 3,961.17

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Solution

The fourth proportional to 7,292.97, 10,930.28 and 3,961.17 is: 5,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.97 : 10,930.28 = 3,961.17 : x
  2. Step 2: Convert to fraction form
    7,292.97/10,930.28 = 3,961.17/x
  3. Step 3: Cross multiply
    7,292.97x = 10,930.28 × 3,961.17
  4. Step 4: Simplify right side
    7,292.97x = 43,296,677.42
  5. Step 5: Solve for x
    x = 43,296,677.42/7,292.97
  6. Step 6: Final answer
    x = 5,936.77

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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.