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Finding the Third Proportional to 8,642 and 9,362

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Solution

The third proportional to 8,642 and 9,362 is: 10,141.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642 : 9,362 = 9,362 : x
  2. Step 2: Convert to fraction form
    8,642/9,362 = 9,362/x
  3. Step 3: Cross multiply
    8,642x = 9,362 × 9,362
  4. Step 4: Simplify right side
    8,642x = 87,647,044
  5. Step 5: Solve for x
    x = 87,647,044/8,642
  6. Step 6: Final answer
    x = 10,141.99

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.