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Finding the Third Proportional to 2,382 and 5,218

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Solution

The third proportional to 2,382 and 5,218 is: 11,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382 : 5,218 = 5,218 : x
  2. Step 2: Convert to fraction form
    2,382/5,218 = 5,218/x
  3. Step 3: Cross multiply
    2,382x = 5,218 × 5,218
  4. Step 4: Simplify right side
    2,382x = 27,227,524
  5. Step 5: Solve for x
    x = 27,227,524/2,382
  6. Step 6: Final answer
    x = 11,430.53

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.