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Finding the Third Proportional to 25,905 and 54,328

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Solution

The third proportional to 25,905 and 54,328 is: 113,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905 : 54,328 = 54,328 : x
  2. Step 2: Convert to fraction form
    25,905/54,328 = 54,328/x
  3. Step 3: Cross multiply
    25,905x = 54,328 × 54,328
  4. Step 4: Simplify right side
    25,905x = 2,951,531,584
  5. Step 5: Solve for x
    x = 2,951,531,584/25,905
  6. Step 6: Final answer
    x = 113,936.75

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.