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Finding the Third Proportional to 6,720 and 10,106

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Solution

The third proportional to 6,720 and 10,106 is: 15,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720 : 10,106 = 10,106 : x
  2. Step 2: Convert to fraction form
    6,720/10,106 = 10,106/x
  3. Step 3: Cross multiply
    6,720x = 10,106 × 10,106
  4. Step 4: Simplify right side
    6,720x = 102,131,236
  5. Step 5: Solve for x
    x = 102,131,236/6,720
  6. Step 6: Final answer
    x = 15,198.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.