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Finding the Third Proportional to 1,247 and 3,017

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Solution

The third proportional to 1,247 and 3,017 is: 7,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247 : 3,017 = 3,017 : x
  2. Step 2: Convert to fraction form
    1,247/3,017 = 3,017/x
  3. Step 3: Cross multiply
    1,247x = 3,017 × 3,017
  4. Step 4: Simplify right side
    1,247x = 9,102,289
  5. Step 5: Solve for x
    x = 9,102,289/1,247
  6. Step 6: Final answer
    x = 7,299.35

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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.