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Finding the Third Proportional to 3,106 and 6,556

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Solution

The third proportional to 3,106 and 6,556 is: 13,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106 : 6,556 = 6,556 : x
  2. Step 2: Convert to fraction form
    3,106/6,556 = 6,556/x
  3. Step 3: Cross multiply
    3,106x = 6,556 × 6,556
  4. Step 4: Simplify right side
    3,106x = 42,981,136
  5. Step 5: Solve for x
    x = 42,981,136/3,106
  6. Step 6: Final answer
    x = 13,838.10

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.