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Finding the Third Proportional to 1,475 and 3,079

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Solution

The third proportional to 1,475 and 3,079 is: 6,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475 : 3,079 = 3,079 : x
  2. Step 2: Convert to fraction form
    1,475/3,079 = 3,079/x
  3. Step 3: Cross multiply
    1,475x = 3,079 × 3,079
  4. Step 4: Simplify right side
    1,475x = 9,480,241
  5. Step 5: Solve for x
    x = 9,480,241/1,475
  6. Step 6: Final answer
    x = 6,427.28

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.