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Finding the Third Proportional to 376.84 and 818.23

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Solution

The third proportional to 376.84 and 818.23 is: 1,776.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.84 : 818.23 = 818.23 : x
  2. Step 2: Convert to fraction form
    376.84/818.23 = 818.23/x
  3. Step 3: Cross multiply
    376.84x = 818.23 × 818.23
  4. Step 4: Simplify right side
    376.84x = 669,494.71
  5. Step 5: Solve for x
    x = 669,494.71/376.84
  6. Step 6: Final answer
    x = 1,776.60

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.