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Finding the Third Proportional to 903.75 and 1,947

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Solution

The third proportional to 903.75 and 1,947 is: 4,194.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.75 : 1,947 = 1,947 : x
  2. Step 2: Convert to fraction form
    903.75/1,947 = 1,947/x
  3. Step 3: Cross multiply
    903.75x = 1,947 × 1,947
  4. Step 4: Simplify right side
    903.75x = 3,790,809
  5. Step 5: Solve for x
    x = 3,790,809/903.75
  6. Step 6: Final answer
    x = 4,194.53

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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.