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Finding the Third Proportional to 1,635 and 3,106

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Solution

The third proportional to 1,635 and 3,106 is: 5,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635 : 3,106 = 3,106 : x
  2. Step 2: Convert to fraction form
    1,635/3,106 = 3,106/x
  3. Step 3: Cross multiply
    1,635x = 3,106 × 3,106
  4. Step 4: Simplify right side
    1,635x = 9,647,236
  5. Step 5: Solve for x
    x = 9,647,236/1,635
  6. Step 6: Final answer
    x = 5,900.45

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.