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Finding the Third Proportional to 4,308 and 6,886

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Solution

The third proportional to 4,308 and 6,886 is: 11,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308 : 6,886 = 6,886 : x
  2. Step 2: Convert to fraction form
    4,308/6,886 = 6,886/x
  3. Step 3: Cross multiply
    4,308x = 6,886 × 6,886
  4. Step 4: Simplify right side
    4,308x = 47,416,996
  5. Step 5: Solve for x
    x = 47,416,996/4,308
  6. Step 6: Final answer
    x = 11,006.73

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.