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Finding the Fourth Proportional to 6,957, 9,600.66 and 3,813.21

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Solution

The fourth proportional to 6,957, 9,600.66 and 3,813.21 is: 5,262.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,957 : 9,600.66 = 3,813.21 : x
  2. Step 2: Convert to fraction form
    6,957/9,600.66 = 3,813.21/x
  3. Step 3: Cross multiply
    6,957x = 9,600.66 × 3,813.21
  4. Step 4: Simplify right side
    6,957x = 36,609,332.72
  5. Step 5: Solve for x
    x = 36,609,332.72/6,957
  6. Step 6: Final answer
    x = 5,262.23

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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.