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Finding the Third Proportional to 1,358 and 3,322

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Solution

The third proportional to 1,358 and 3,322 is: 8,126.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358 : 3,322 = 3,322 : x
  2. Step 2: Convert to fraction form
    1,358/3,322 = 3,322/x
  3. Step 3: Cross multiply
    1,358x = 3,322 × 3,322
  4. Step 4: Simplify right side
    1,358x = 11,035,684
  5. Step 5: Solve for x
    x = 11,035,684/1,358
  6. Step 6: Final answer
    x = 8,126.42

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.