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Finding the Third Proportional to 2,440 and 6,622

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Solution

The third proportional to 2,440 and 6,622 is: 17,971.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440 : 6,622 = 6,622 : x
  2. Step 2: Convert to fraction form
    2,440/6,622 = 6,622/x
  3. Step 3: Cross multiply
    2,440x = 6,622 × 6,622
  4. Step 4: Simplify right side
    2,440x = 43,850,884
  5. Step 5: Solve for x
    x = 43,850,884/2,440
  6. Step 6: Final answer
    x = 17,971.67

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Why These Related Problems?

These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.