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Finding the Third Proportional to 18,937 and 29,292

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Solution

The third proportional to 18,937 and 29,292 is: 45,309.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937 : 29,292 = 29,292 : x
  2. Step 2: Convert to fraction form
    18,937/29,292 = 29,292/x
  3. Step 3: Cross multiply
    18,937x = 29,292 × 29,292
  4. Step 4: Simplify right side
    18,937x = 858,021,264
  5. Step 5: Solve for x
    x = 858,021,264/18,937
  6. Step 6: Final answer
    x = 45,309.25

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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.