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Finding the Third Proportional to 6,931 and 14,270

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Solution

The third proportional to 6,931 and 14,270 is: 29,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931 : 14,270 = 14,270 : x
  2. Step 2: Convert to fraction form
    6,931/14,270 = 14,270/x
  3. Step 3: Cross multiply
    6,931x = 14,270 × 14,270
  4. Step 4: Simplify right side
    6,931x = 203,632,900
  5. Step 5: Solve for x
    x = 203,632,900/6,931
  6. Step 6: Final answer
    x = 29,380.02

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.