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Finding the Third Proportional to 4,391 and 6,951

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Solution

The third proportional to 4,391 and 6,951 is: 11,003.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391 : 6,951 = 6,951 : x
  2. Step 2: Convert to fraction form
    4,391/6,951 = 6,951/x
  3. Step 3: Cross multiply
    4,391x = 6,951 × 6,951
  4. Step 4: Simplify right side
    4,391x = 48,316,401
  5. Step 5: Solve for x
    x = 48,316,401/4,391
  6. Step 6: Final answer
    x = 11,003.51

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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.