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Finding the Third Proportional to 1,912.50 and 2,997

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Solution

The third proportional to 1,912.50 and 2,997 is: 4,696.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.50 : 2,997 = 2,997 : x
  2. Step 2: Convert to fraction form
    1,912.50/2,997 = 2,997/x
  3. Step 3: Cross multiply
    1,912.50x = 2,997 × 2,997
  4. Step 4: Simplify right side
    1,912.50x = 8,982,009
  5. Step 5: Solve for x
    x = 8,982,009/1,912.50
  6. Step 6: Final answer
    x = 4,696.48

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.