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Finding the Third Proportional to 3,490 and 5,244

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Solution

The third proportional to 3,490 and 5,244 is: 7,879.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490 : 5,244 = 5,244 : x
  2. Step 2: Convert to fraction form
    3,490/5,244 = 5,244/x
  3. Step 3: Cross multiply
    3,490x = 5,244 × 5,244
  4. Step 4: Simplify right side
    3,490x = 27,499,536
  5. Step 5: Solve for x
    x = 27,499,536/3,490
  6. Step 6: Final answer
    x = 7,879.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.