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Finding the Third Proportional to 1,946 and 2,976

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Solution

The third proportional to 1,946 and 2,976 is: 4,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946 : 2,976 = 2,976 : x
  2. Step 2: Convert to fraction form
    1,946/2,976 = 2,976/x
  3. Step 3: Cross multiply
    1,946x = 2,976 × 2,976
  4. Step 4: Simplify right side
    1,946x = 8,856,576
  5. Step 5: Solve for x
    x = 8,856,576/1,946
  6. Step 6: Final answer
    x = 4,551.17

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.