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Finding the Third Proportional to 348.75 and 906.38

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Solution

The third proportional to 348.75 and 906.38 is: 2,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.75 : 906.38 = 906.38 : x
  2. Step 2: Convert to fraction form
    348.75/906.38 = 906.38/x
  3. Step 3: Cross multiply
    348.75x = 906.38 × 906.38
  4. Step 4: Simplify right side
    348.75x = 821,515.64
  5. Step 5: Solve for x
    x = 821,515.64/348.75
  6. Step 6: Final answer
    x = 2,355.60

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.