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Finding the Third Proportional to 6,925 and 10,387

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Solution

The third proportional to 6,925 and 10,387 is: 15,579.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,925 : 10,387 = 10,387 : x
  2. Step 2: Convert to fraction form
    6,925/10,387 = 10,387/x
  3. Step 3: Cross multiply
    6,925x = 10,387 × 10,387
  4. Step 4: Simplify right side
    6,925x = 107,889,769
  5. Step 5: Solve for x
    x = 107,889,769/6,925
  6. Step 6: Final answer
    x = 15,579.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.