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Finding the Third Proportional to 15,408 and 23,905

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Solution

The third proportional to 15,408 and 23,905 is: 37,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408 : 23,905 = 23,905 : x
  2. Step 2: Convert to fraction form
    15,408/23,905 = 23,905/x
  3. Step 3: Cross multiply
    15,408x = 23,905 × 23,905
  4. Step 4: Simplify right side
    15,408x = 571,449,025
  5. Step 5: Solve for x
    x = 571,449,025/15,408
  6. Step 6: Final answer
    x = 37,087.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.