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Finding the Third Proportional to 4,128 and 5,886

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Solution

The third proportional to 4,128 and 5,886 is: 8,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128 : 5,886 = 5,886 : x
  2. Step 2: Convert to fraction form
    4,128/5,886 = 5,886/x
  3. Step 3: Cross multiply
    4,128x = 5,886 × 5,886
  4. Step 4: Simplify right side
    4,128x = 34,644,996
  5. Step 5: Solve for x
    x = 34,644,996/4,128
  6. Step 6: Final answer
    x = 8,392.68

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.