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Finding the Third Proportional to 15,821 and 24,689

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Solution

The third proportional to 15,821 and 24,689 is: 38,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821 : 24,689 = 24,689 : x
  2. Step 2: Convert to fraction form
    15,821/24,689 = 24,689/x
  3. Step 3: Cross multiply
    15,821x = 24,689 × 24,689
  4. Step 4: Simplify right side
    15,821x = 609,546,721
  5. Step 5: Solve for x
    x = 609,546,721/15,821
  6. Step 6: Final answer
    x = 38,527.70

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.