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Finding the Third Proportional to 746.38 and 1,115.44

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Solution

The third proportional to 746.38 and 1,115.44 is: 1,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.38 : 1,115.44 = 1,115.44 : x
  2. Step 2: Convert to fraction form
    746.38/1,115.44 = 1,115.44/x
  3. Step 3: Cross multiply
    746.38x = 1,115.44 × 1,115.44
  4. Step 4: Simplify right side
    746.38x = 1,244,200.82
  5. Step 5: Solve for x
    x = 1,244,200.82/746.38
  6. Step 6: Final answer
    x = 1,666.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.