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Finding the Third Proportional to 7,190 and 15,828

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Solution

The third proportional to 7,190 and 15,828 is: 34,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190 : 15,828 = 15,828 : x
  2. Step 2: Convert to fraction form
    7,190/15,828 = 15,828/x
  3. Step 3: Cross multiply
    7,190x = 15,828 × 15,828
  4. Step 4: Simplify right side
    7,190x = 250,525,584
  5. Step 5: Solve for x
    x = 250,525,584/7,190
  6. Step 6: Final answer
    x = 34,843.61

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.