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Finding the Third Proportional to 7,162 and 15,439

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Solution

The third proportional to 7,162 and 15,439 is: 33,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162 : 15,439 = 15,439 : x
  2. Step 2: Convert to fraction form
    7,162/15,439 = 15,439/x
  3. Step 3: Cross multiply
    7,162x = 15,439 × 15,439
  4. Step 4: Simplify right side
    7,162x = 238,362,721
  5. Step 5: Solve for x
    x = 238,362,721/7,162
  6. Step 6: Final answer
    x = 33,281.59

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.