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Finding the Third Proportional to 2,169.75 and 4,683.75

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Solution

The third proportional to 2,169.75 and 4,683.75 is: 10,110.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.75 : 4,683.75 = 4,683.75 : x
  2. Step 2: Convert to fraction form
    2,169.75/4,683.75 = 4,683.75/x
  3. Step 3: Cross multiply
    2,169.75x = 4,683.75 × 4,683.75
  4. Step 4: Simplify right side
    2,169.75x = 21,937,514.06
  5. Step 5: Solve for x
    x = 21,937,514.06/2,169.75
  6. Step 6: Final answer
    x = 10,110.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.