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Finding the Third Proportional to 5,299 and 8,382

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Solution

The third proportional to 5,299 and 8,382 is: 13,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299 : 8,382 = 8,382 : x
  2. Step 2: Convert to fraction form
    5,299/8,382 = 8,382/x
  3. Step 3: Cross multiply
    5,299x = 8,382 × 8,382
  4. Step 4: Simplify right side
    5,299x = 70,257,924
  5. Step 5: Solve for x
    x = 70,257,924/5,299
  6. Step 6: Final answer
    x = 13,258.71

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.