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Finding the Third Proportional to 1,470.75 and 3,168.75

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Solution

The third proportional to 1,470.75 and 3,168.75 is: 6,827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.75 : 3,168.75 = 3,168.75 : x
  2. Step 2: Convert to fraction form
    1,470.75/3,168.75 = 3,168.75/x
  3. Step 3: Cross multiply
    1,470.75x = 3,168.75 × 3,168.75
  4. Step 4: Simplify right side
    1,470.75x = 10,040,976.56
  5. Step 5: Solve for x
    x = 10,040,976.56/1,470.75
  6. Step 6: Final answer
    x = 6,827.11

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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.