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Finding the Third Proportional to 412 and 913

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Solution

The third proportional to 412 and 913 is: 2,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    412 : 913 = 913 : x
  2. Step 2: Convert to fraction form
    412/913 = 913/x
  3. Step 3: Cross multiply
    412x = 913 × 913
  4. Step 4: Simplify right side
    412x = 833,569
  5. Step 5: Solve for x
    x = 833,569/412
  6. Step 6: Final answer
    x = 2,023.23

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.