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Finding the Third Proportional to 6,218 and 7,010

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Solution

The third proportional to 6,218 and 7,010 is: 7,902.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218 : 7,010 = 7,010 : x
  2. Step 2: Convert to fraction form
    6,218/7,010 = 7,010/x
  3. Step 3: Cross multiply
    6,218x = 7,010 × 7,010
  4. Step 4: Simplify right side
    6,218x = 49,140,100
  5. Step 5: Solve for x
    x = 49,140,100/6,218
  6. Step 6: Final answer
    x = 7,902.88

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.