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Finding the Third Proportional to 27,288 and 38,636

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Solution

The third proportional to 27,288 and 38,636 is: 54,703.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,288 : 38,636 = 38,636 : x
  2. Step 2: Convert to fraction form
    27,288/38,636 = 38,636/x
  3. Step 3: Cross multiply
    27,288x = 38,636 × 38,636
  4. Step 4: Simplify right side
    27,288x = 1,492,740,496
  5. Step 5: Solve for x
    x = 1,492,740,496/27,288
  6. Step 6: Final answer
    x = 54,703.18

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.