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Finding the Third Proportional to 1,470 and 3,369

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Solution

The third proportional to 1,470 and 3,369 is: 7,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470 : 3,369 = 3,369 : x
  2. Step 2: Convert to fraction form
    1,470/3,369 = 3,369/x
  3. Step 3: Cross multiply
    1,470x = 3,369 × 3,369
  4. Step 4: Simplify right side
    1,470x = 11,350,161
  5. Step 5: Solve for x
    x = 11,350,161/1,470
  6. Step 6: Final answer
    x = 7,721.20

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Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.