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Finding the Third Proportional to 25,454 and 38,721

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Solution

The third proportional to 25,454 and 38,721 is: 58,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,454 : 38,721 = 38,721 : x
  2. Step 2: Convert to fraction form
    25,454/38,721 = 38,721/x
  3. Step 3: Cross multiply
    25,454x = 38,721 × 38,721
  4. Step 4: Simplify right side
    25,454x = 1,499,315,841
  5. Step 5: Solve for x
    x = 1,499,315,841/25,454
  6. Step 6: Final answer
    x = 58,902.96

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.