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Finding the Third Proportional to 9,540 and 15,859

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Solution

The third proportional to 9,540 and 15,859 is: 26,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540 : 15,859 = 15,859 : x
  2. Step 2: Convert to fraction form
    9,540/15,859 = 15,859/x
  3. Step 3: Cross multiply
    9,540x = 15,859 × 15,859
  4. Step 4: Simplify right side
    9,540x = 251,507,881
  5. Step 5: Solve for x
    x = 251,507,881/9,540
  6. Step 6: Final answer
    x = 26,363.51

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.