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Finding the Third Proportional to 25,338 and 39,330

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Solution

The third proportional to 25,338 and 39,330 is: 61,048.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,338 : 39,330 = 39,330 : x
  2. Step 2: Convert to fraction form
    25,338/39,330 = 39,330/x
  3. Step 3: Cross multiply
    25,338x = 39,330 × 39,330
  4. Step 4: Simplify right side
    25,338x = 1,546,848,900
  5. Step 5: Solve for x
    x = 1,546,848,900/25,338
  6. Step 6: Final answer
    x = 61,048.58

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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.