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Finding the Third Proportional to 3,904.88 and 8,356.92

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Solution

The third proportional to 3,904.88 and 8,356.92 is: 17,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.88 : 8,356.92 = 8,356.92 : x
  2. Step 2: Convert to fraction form
    3,904.88/8,356.92 = 8,356.92/x
  3. Step 3: Cross multiply
    3,904.88x = 8,356.92 × 8,356.92
  4. Step 4: Simplify right side
    3,904.88x = 69,838,143.22
  5. Step 5: Solve for x
    x = 69,838,143.22/3,904.88
  6. Step 6: Final answer
    x = 17,884.86

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.