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Finding the Third Proportional to 15,881 and 34,875

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Solution

The third proportional to 15,881 and 34,875 is: 76,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881 : 34,875 = 34,875 : x
  2. Step 2: Convert to fraction form
    15,881/34,875 = 34,875/x
  3. Step 3: Cross multiply
    15,881x = 34,875 × 34,875
  4. Step 4: Simplify right side
    15,881x = 1,216,265,625
  5. Step 5: Solve for x
    x = 1,216,265,625/15,881
  6. Step 6: Final answer
    x = 76,586.21

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.