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Finding the Third Proportional to 908.75 and 1,296.75

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Solution

The third proportional to 908.75 and 1,296.75 is: 1,850.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    908.75 : 1,296.75 = 1,296.75 : x
  2. Step 2: Convert to fraction form
    908.75/1,296.75 = 1,296.75/x
  3. Step 3: Cross multiply
    908.75x = 1,296.75 × 1,296.75
  4. Step 4: Simplify right side
    908.75x = 1,681,560.56
  5. Step 5: Solve for x
    x = 1,681,560.56/908.75
  6. Step 6: Final answer
    x = 1,850.41

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.