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Finding the Third Proportional to 2,939 and 6,358

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Solution

The third proportional to 2,939 and 6,358 is: 13,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939 : 6,358 = 6,358 : x
  2. Step 2: Convert to fraction form
    2,939/6,358 = 6,358/x
  3. Step 3: Cross multiply
    2,939x = 6,358 × 6,358
  4. Step 4: Simplify right side
    2,939x = 40,424,164
  5. Step 5: Solve for x
    x = 40,424,164/2,939
  6. Step 6: Final answer
    x = 13,754.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.