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Finding the Third Proportional to 2,491 and 4,424

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Solution

The third proportional to 2,491 and 4,424 is: 7,857.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491 : 4,424 = 4,424 : x
  2. Step 2: Convert to fraction form
    2,491/4,424 = 4,424/x
  3. Step 3: Cross multiply
    2,491x = 4,424 × 4,424
  4. Step 4: Simplify right side
    2,491x = 19,571,776
  5. Step 5: Solve for x
    x = 19,571,776/2,491
  6. Step 6: Final answer
    x = 7,857.00

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.