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Finding the Third Proportional to 348.75 and 751.50

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Solution

The third proportional to 348.75 and 751.50 is: 1,619.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.75 : 751.50 = 751.50 : x
  2. Step 2: Convert to fraction form
    348.75/751.50 = 751.50/x
  3. Step 3: Cross multiply
    348.75x = 751.50 × 751.50
  4. Step 4: Simplify right side
    348.75x = 564,752.25
  5. Step 5: Solve for x
    x = 564,752.25/348.75
  6. Step 6: Final answer
    x = 1,619.36

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.