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Finding the Third Proportional to 2,913 and 3,738

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Solution

The third proportional to 2,913 and 3,738 is: 4,796.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913 : 3,738 = 3,738 : x
  2. Step 2: Convert to fraction form
    2,913/3,738 = 3,738/x
  3. Step 3: Cross multiply
    2,913x = 3,738 × 3,738
  4. Step 4: Simplify right side
    2,913x = 13,972,644
  5. Step 5: Solve for x
    x = 13,972,644/2,913
  6. Step 6: Final answer
    x = 4,796.65

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.