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Finding the Third Proportional to 1,533.75 and 3,321.75

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Solution

The third proportional to 1,533.75 and 3,321.75 is: 7,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.75 : 3,321.75 = 3,321.75 : x
  2. Step 2: Convert to fraction form
    1,533.75/3,321.75 = 3,321.75/x
  3. Step 3: Cross multiply
    1,533.75x = 3,321.75 × 3,321.75
  4. Step 4: Simplify right side
    1,533.75x = 11,034,023.06
  5. Step 5: Solve for x
    x = 11,034,023.06/1,533.75
  6. Step 6: Final answer
    x = 7,194.15

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.