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Finding the Third Proportional to 15,980 and 23,859

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Solution

The third proportional to 15,980 and 23,859 is: 35,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980 : 23,859 = 23,859 : x
  2. Step 2: Convert to fraction form
    15,980/23,859 = 23,859/x
  3. Step 3: Cross multiply
    15,980x = 23,859 × 23,859
  4. Step 4: Simplify right side
    15,980x = 569,251,881
  5. Step 5: Solve for x
    x = 569,251,881/15,980
  6. Step 6: Final answer
    x = 35,622.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.