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Finding the Third Proportional to 15,910 and 25,086

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Solution

The third proportional to 15,910 and 25,086 is: 39,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910 : 25,086 = 25,086 : x
  2. Step 2: Convert to fraction form
    15,910/25,086 = 25,086/x
  3. Step 3: Cross multiply
    15,910x = 25,086 × 25,086
  4. Step 4: Simplify right side
    15,910x = 629,307,396
  5. Step 5: Solve for x
    x = 629,307,396/15,910
  6. Step 6: Final answer
    x = 39,554.20

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.