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Finding the Third Proportional to 2,786 and 7,529

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Solution

The third proportional to 2,786 and 7,529 is: 20,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786 : 7,529 = 7,529 : x
  2. Step 2: Convert to fraction form
    2,786/7,529 = 7,529/x
  3. Step 3: Cross multiply
    2,786x = 7,529 × 7,529
  4. Step 4: Simplify right side
    2,786x = 56,685,841
  5. Step 5: Solve for x
    x = 56,685,841/2,786
  6. Step 6: Final answer
    x = 20,346.68

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.