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Finding the Third Proportional to 2,497 and 5,378

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Solution

The third proportional to 2,497 and 5,378 is: 11,583.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,497 : 5,378 = 5,378 : x
  2. Step 2: Convert to fraction form
    2,497/5,378 = 5,378/x
  3. Step 3: Cross multiply
    2,497x = 5,378 × 5,378
  4. Step 4: Simplify right side
    2,497x = 28,922,884
  5. Step 5: Solve for x
    x = 28,922,884/2,497
  6. Step 6: Final answer
    x = 11,583.05

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.