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Finding the Third Proportional to 3,369 and 5,580

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Solution

The third proportional to 3,369 and 5,580 is: 9,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369 : 5,580 = 5,580 : x
  2. Step 2: Convert to fraction form
    3,369/5,580 = 5,580/x
  3. Step 3: Cross multiply
    3,369x = 5,580 × 5,580
  4. Step 4: Simplify right side
    3,369x = 31,136,400
  5. Step 5: Solve for x
    x = 31,136,400/3,369
  6. Step 6: Final answer
    x = 9,242.03

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.