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Finding the Third Proportional to 1,374 and 2,819

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Solution

The third proportional to 1,374 and 2,819 is: 5,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374 : 2,819 = 2,819 : x
  2. Step 2: Convert to fraction form
    1,374/2,819 = 2,819/x
  3. Step 3: Cross multiply
    1,374x = 2,819 × 2,819
  4. Step 4: Simplify right side
    1,374x = 7,946,761
  5. Step 5: Solve for x
    x = 7,946,761/1,374
  6. Step 6: Final answer
    x = 5,783.67

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.