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Finding the Third Proportional to 1,458 and 3,406

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Solution

The third proportional to 1,458 and 3,406 is: 7,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458 : 3,406 = 3,406 : x
  2. Step 2: Convert to fraction form
    1,458/3,406 = 3,406/x
  3. Step 3: Cross multiply
    1,458x = 3,406 × 3,406
  4. Step 4: Simplify right side
    1,458x = 11,600,836
  5. Step 5: Solve for x
    x = 11,600,836/1,458
  6. Step 6: Final answer
    x = 7,956.68

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.