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Finding the Third Proportional to 11,526 and 15,873

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Solution

The third proportional to 11,526 and 15,873 is: 21,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,526 : 15,873 = 15,873 : x
  2. Step 2: Convert to fraction form
    11,526/15,873 = 15,873/x
  3. Step 3: Cross multiply
    11,526x = 15,873 × 15,873
  4. Step 4: Simplify right side
    11,526x = 251,952,129
  5. Step 5: Solve for x
    x = 251,952,129/11,526
  6. Step 6: Final answer
    x = 21,859.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.