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Finding the Third Proportional to 25,391.25 and 39,474

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Solution

The third proportional to 25,391.25 and 39,474 is: 61,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,391.25 : 39,474 = 39,474 : x
  2. Step 2: Convert to fraction form
    25,391.25/39,474 = 39,474/x
  3. Step 3: Cross multiply
    25,391.25x = 39,474 × 39,474
  4. Step 4: Simplify right side
    25,391.25x = 1,558,196,676
  5. Step 5: Solve for x
    x = 1,558,196,676/25,391.25
  6. Step 6: Final answer
    x = 61,367.47

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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.