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Finding the Third Proportional to 651.75 and 1,403.25

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Solution

The third proportional to 651.75 and 1,403.25 is: 3,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.75 : 1,403.25 = 1,403.25 : x
  2. Step 2: Convert to fraction form
    651.75/1,403.25 = 1,403.25/x
  3. Step 3: Cross multiply
    651.75x = 1,403.25 × 1,403.25
  4. Step 4: Simplify right side
    651.75x = 1,969,110.56
  5. Step 5: Solve for x
    x = 1,969,110.56/651.75
  6. Step 6: Final answer
    x = 3,021.27

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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.