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Finding the Third Proportional to 484.75 and 1,019.75

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Solution

The third proportional to 484.75 and 1,019.75 is: 2,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.75 : 1,019.75 = 1,019.75 : x
  2. Step 2: Convert to fraction form
    484.75/1,019.75 = 1,019.75/x
  3. Step 3: Cross multiply
    484.75x = 1,019.75 × 1,019.75
  4. Step 4: Simplify right side
    484.75x = 1,039,890.06
  5. Step 5: Solve for x
    x = 1,039,890.06/484.75
  6. Step 6: Final answer
    x = 2,145.21

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.