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Finding the Third Proportional to 2,020 and 4,895

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Solution

The third proportional to 2,020 and 4,895 is: 11,861.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020 : 4,895 = 4,895 : x
  2. Step 2: Convert to fraction form
    2,020/4,895 = 4,895/x
  3. Step 3: Cross multiply
    2,020x = 4,895 × 4,895
  4. Step 4: Simplify right side
    2,020x = 23,961,025
  5. Step 5: Solve for x
    x = 23,961,025/2,020
  6. Step 6: Final answer
    x = 11,861.89

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.