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Finding the Third Proportional to 1,356 and 2,941

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Solution

The third proportional to 1,356 and 2,941 is: 6,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356 : 2,941 = 2,941 : x
  2. Step 2: Convert to fraction form
    1,356/2,941 = 2,941/x
  3. Step 3: Cross multiply
    1,356x = 2,941 × 2,941
  4. Step 4: Simplify right side
    1,356x = 8,649,481
  5. Step 5: Solve for x
    x = 8,649,481/1,356
  6. Step 6: Final answer
    x = 6,378.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.