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Finding the Third Proportional to 3,886.31 and 6,188.91

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Solution

The third proportional to 3,886.31 and 6,188.91 is: 9,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.31 : 6,188.91 = 6,188.91 : x
  2. Step 2: Convert to fraction form
    3,886.31/6,188.91 = 6,188.91/x
  3. Step 3: Cross multiply
    3,886.31x = 6,188.91 × 6,188.91
  4. Step 4: Simplify right side
    3,886.31x = 38,302,560.57
  5. Step 5: Solve for x
    x = 38,302,560.57/3,886.31
  6. Step 6: Final answer
    x = 9,855.76

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.