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Finding the Third Proportional to 7,396 and 15,816

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Solution

The third proportional to 7,396 and 15,816 is: 33,821.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,396 : 15,816 = 15,816 : x
  2. Step 2: Convert to fraction form
    7,396/15,816 = 15,816/x
  3. Step 3: Cross multiply
    7,396x = 15,816 × 15,816
  4. Step 4: Simplify right side
    7,396x = 250,145,856
  5. Step 5: Solve for x
    x = 250,145,856/7,396
  6. Step 6: Final answer
    x = 33,821.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.