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Finding the Third Proportional to 739.75 and 1,113.38

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Solution

The third proportional to 739.75 and 1,113.38 is: 1,675.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.75 : 1,113.38 = 1,113.38 : x
  2. Step 2: Convert to fraction form
    739.75/1,113.38 = 1,113.38/x
  3. Step 3: Cross multiply
    739.75x = 1,113.38 × 1,113.38
  4. Step 4: Simplify right side
    739.75x = 1,239,603.89
  5. Step 5: Solve for x
    x = 1,239,603.89/739.75
  6. Step 6: Final answer
    x = 1,675.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.