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Finding the Third Proportional to 15,422 and 23,871

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Solution

The third proportional to 15,422 and 23,871 is: 36,948.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422 : 23,871 = 23,871 : x
  2. Step 2: Convert to fraction form
    15,422/23,871 = 23,871/x
  3. Step 3: Cross multiply
    15,422x = 23,871 × 23,871
  4. Step 4: Simplify right side
    15,422x = 569,824,641
  5. Step 5: Solve for x
    x = 569,824,641/15,422
  6. Step 6: Final answer
    x = 36,948.82

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.