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Finding the Third Proportional to 18,257 and 27,516

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Solution

The third proportional to 18,257 and 27,516 is: 41,470.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257 : 27,516 = 27,516 : x
  2. Step 2: Convert to fraction form
    18,257/27,516 = 27,516/x
  3. Step 3: Cross multiply
    18,257x = 27,516 × 27,516
  4. Step 4: Simplify right side
    18,257x = 757,130,256
  5. Step 5: Solve for x
    x = 757,130,256/18,257
  6. Step 6: Final answer
    x = 41,470.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.