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Finding the Third Proportional to 1,912 and 2,932

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Solution

The third proportional to 1,912 and 2,932 is: 4,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912 : 2,932 = 2,932 : x
  2. Step 2: Convert to fraction form
    1,912/2,932 = 2,932/x
  3. Step 3: Cross multiply
    1,912x = 2,932 × 2,932
  4. Step 4: Simplify right side
    1,912x = 8,596,624
  5. Step 5: Solve for x
    x = 8,596,624/1,912
  6. Step 6: Final answer
    x = 4,496.14

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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.