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Finding the Third Proportional to 15,611 and 23,391

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Solution

The third proportional to 15,611 and 23,391 is: 35,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611 : 23,391 = 23,391 : x
  2. Step 2: Convert to fraction form
    15,611/23,391 = 23,391/x
  3. Step 3: Cross multiply
    15,611x = 23,391 × 23,391
  4. Step 4: Simplify right side
    15,611x = 547,138,881
  5. Step 5: Solve for x
    x = 547,138,881/15,611
  6. Step 6: Final answer
    x = 35,048.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.