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Finding the Third Proportional to 3,718 and 5,511

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Solution

The third proportional to 3,718 and 5,511 is: 8,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718 : 5,511 = 5,511 : x
  2. Step 2: Convert to fraction form
    3,718/5,511 = 5,511/x
  3. Step 3: Cross multiply
    3,718x = 5,511 × 5,511
  4. Step 4: Simplify right side
    3,718x = 30,371,121
  5. Step 5: Solve for x
    x = 30,371,121/3,718
  6. Step 6: Final answer
    x = 8,168.67

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.