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Finding the Third Proportional to 1,903.50 and 3,984.19

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Solution

The third proportional to 1,903.50 and 3,984.19 is: 8,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.50 : 3,984.19 = 3,984.19 : x
  2. Step 2: Convert to fraction form
    1,903.50/3,984.19 = 3,984.19/x
  3. Step 3: Cross multiply
    1,903.50x = 3,984.19 × 3,984.19
  4. Step 4: Simplify right side
    1,903.50x = 15,873,750.04
  5. Step 5: Solve for x
    x = 15,873,750.04/1,903.50
  6. Step 6: Final answer
    x = 8,339.24

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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.