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Finding the Fourth Proportional to 9,791.79, 14,702.27 and 3,959.79

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Solution

The fourth proportional to 9,791.79, 14,702.27 and 3,959.79 is: 5,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,791.79 : 14,702.27 = 3,959.79 : x
  2. Step 2: Convert to fraction form
    9,791.79/14,702.27 = 3,959.79/x
  3. Step 3: Cross multiply
    9,791.79x = 14,702.27 × 3,959.79
  4. Step 4: Simplify right side
    9,791.79x = 58,217,881.92
  5. Step 5: Solve for x
    x = 58,217,881.92/9,791.79
  6. Step 6: Final answer
    x = 5,945.58

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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.