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Finding the Third Proportional to 10,622 and 15,623

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Solution

The third proportional to 10,622 and 15,623 is: 22,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622 : 15,623 = 15,623 : x
  2. Step 2: Convert to fraction form
    10,622/15,623 = 15,623/x
  3. Step 3: Cross multiply
    10,622x = 15,623 × 15,623
  4. Step 4: Simplify right side
    10,622x = 244,078,129
  5. Step 5: Solve for x
    x = 244,078,129/10,622
  6. Step 6: Final answer
    x = 22,978.55

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.