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Finding the Third Proportional to 1,183.78 and 1,775.67

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Solution

The third proportional to 1,183.78 and 1,775.67 is: 2,663.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.78 : 1,775.67 = 1,775.67 : x
  2. Step 2: Convert to fraction form
    1,183.78/1,775.67 = 1,775.67/x
  3. Step 3: Cross multiply
    1,183.78x = 1,775.67 × 1,775.67
  4. Step 4: Simplify right side
    1,183.78x = 3,153,010.61
  5. Step 5: Solve for x
    x = 3,153,010.61/1,183.78
  6. Step 6: Final answer
    x = 2,663.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.