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Finding the Third Proportional to 5,015 and 7,610

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Solution

The third proportional to 5,015 and 7,610 is: 11,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015 : 7,610 = 7,610 : x
  2. Step 2: Convert to fraction form
    5,015/7,610 = 7,610/x
  3. Step 3: Cross multiply
    5,015x = 7,610 × 7,610
  4. Step 4: Simplify right side
    5,015x = 57,912,100
  5. Step 5: Solve for x
    x = 57,912,100/5,015
  6. Step 6: Final answer
    x = 11,547.78

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.