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Finding the Third Proportional to 1,174 and 2,786.50

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Solution

The third proportional to 1,174 and 2,786.50 is: 6,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174 : 2,786.50 = 2,786.50 : x
  2. Step 2: Convert to fraction form
    1,174/2,786.50 = 2,786.50/x
  3. Step 3: Cross multiply
    1,174x = 2,786.50 × 2,786.50
  4. Step 4: Simplify right side
    1,174x = 7,764,582.25
  5. Step 5: Solve for x
    x = 7,764,582.25/1,174
  6. Step 6: Final answer
    x = 6,613.78

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.