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Finding the Third Proportional to 27,886 and 43,476

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Solution

The third proportional to 27,886 and 43,476 is: 67,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886 : 43,476 = 43,476 : x
  2. Step 2: Convert to fraction form
    27,886/43,476 = 43,476/x
  3. Step 3: Cross multiply
    27,886x = 43,476 × 43,476
  4. Step 4: Simplify right side
    27,886x = 1,890,162,576
  5. Step 5: Solve for x
    x = 1,890,162,576/27,886
  6. Step 6: Final answer
    x = 67,781.77

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.