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Finding the Third Proportional to 24,640 and 39,172

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Solution

The third proportional to 24,640 and 39,172 is: 62,274.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,640 : 39,172 = 39,172 : x
  2. Step 2: Convert to fraction form
    24,640/39,172 = 39,172/x
  3. Step 3: Cross multiply
    24,640x = 39,172 × 39,172
  4. Step 4: Simplify right side
    24,640x = 1,534,445,584
  5. Step 5: Solve for x
    x = 1,534,445,584/24,640
  6. Step 6: Final answer
    x = 62,274.58

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.