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Finding the Third Proportional to 25,155 and 51,930

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Solution

The third proportional to 25,155 and 51,930 is: 107,204.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155 : 51,930 = 51,930 : x
  2. Step 2: Convert to fraction form
    25,155/51,930 = 51,930/x
  3. Step 3: Cross multiply
    25,155x = 51,930 × 51,930
  4. Step 4: Simplify right side
    25,155x = 2,696,724,900
  5. Step 5: Solve for x
    x = 2,696,724,900/25,155
  6. Step 6: Final answer
    x = 107,204.33

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.