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Finding the Third Proportional to 25,721 and 39,590

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Solution

The third proportional to 25,721 and 39,590 is: 60,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721 : 39,590 = 39,590 : x
  2. Step 2: Convert to fraction form
    25,721/39,590 = 39,590/x
  3. Step 3: Cross multiply
    25,721x = 39,590 × 39,590
  4. Step 4: Simplify right side
    25,721x = 1,567,368,100
  5. Step 5: Solve for x
    x = 1,567,368,100/25,721
  6. Step 6: Final answer
    x = 60,937.29

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.