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Finding the Third Proportional to 1,511 and 3,303

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Solution

The third proportional to 1,511 and 3,303 is: 7,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511 : 3,303 = 3,303 : x
  2. Step 2: Convert to fraction form
    1,511/3,303 = 3,303/x
  3. Step 3: Cross multiply
    1,511x = 3,303 × 3,303
  4. Step 4: Simplify right side
    1,511x = 10,909,809
  5. Step 5: Solve for x
    x = 10,909,809/1,511
  6. Step 6: Final answer
    x = 7,220.26

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.