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Finding the Third Proportional to 814 and 983.50

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Solution

The third proportional to 814 and 983.50 is: 1,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814 : 983.50 = 983.50 : x
  2. Step 2: Convert to fraction form
    814/983.50 = 983.50/x
  3. Step 3: Cross multiply
    814x = 983.50 × 983.50
  4. Step 4: Simplify right side
    814x = 967,272.25
  5. Step 5: Solve for x
    x = 967,272.25/814
  6. Step 6: Final answer
    x = 1,188.30

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.