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Finding the Third Proportional to 755.25 and 1,747.50

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Solution

The third proportional to 755.25 and 1,747.50 is: 4,043.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    755.25 : 1,747.50 = 1,747.50 : x
  2. Step 2: Convert to fraction form
    755.25/1,747.50 = 1,747.50/x
  3. Step 3: Cross multiply
    755.25x = 1,747.50 × 1,747.50
  4. Step 4: Simplify right side
    755.25x = 3,053,756.25
  5. Step 5: Solve for x
    x = 3,053,756.25/755.25
  6. Step 6: Final answer
    x = 4,043.37

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.