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Finding the Third Proportional to 6,920 and 14,760

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Solution

The third proportional to 6,920 and 14,760 is: 31,482.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920 : 14,760 = 14,760 : x
  2. Step 2: Convert to fraction form
    6,920/14,760 = 14,760/x
  3. Step 3: Cross multiply
    6,920x = 14,760 × 14,760
  4. Step 4: Simplify right side
    6,920x = 217,857,600
  5. Step 5: Solve for x
    x = 217,857,600/6,920
  6. Step 6: Final answer
    x = 31,482.31

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.