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Finding the Third Proportional to 7,378 and 16,394

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Solution

The third proportional to 7,378 and 16,394 is: 36,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378 : 16,394 = 16,394 : x
  2. Step 2: Convert to fraction form
    7,378/16,394 = 16,394/x
  3. Step 3: Cross multiply
    7,378x = 16,394 × 16,394
  4. Step 4: Simplify right side
    7,378x = 268,763,236
  5. Step 5: Solve for x
    x = 268,763,236/7,378
  6. Step 6: Final answer
    x = 36,427.65

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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.