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Finding the Third Proportional to 236.75 and 613.25

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Solution

The third proportional to 236.75 and 613.25 is: 1,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.75 : 613.25 = 613.25 : x
  2. Step 2: Convert to fraction form
    236.75/613.25 = 613.25/x
  3. Step 3: Cross multiply
    236.75x = 613.25 × 613.25
  4. Step 4: Simplify right side
    236.75x = 376,075.56
  5. Step 5: Solve for x
    x = 376,075.56/236.75
  6. Step 6: Final answer
    x = 1,588.49

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Why These Related Problems?

These problems maintain the same ratio (2.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.