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Finding the Third Proportional to 1,903.50 and 3,190.64

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Solution

The third proportional to 1,903.50 and 3,190.64 is: 5,348.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.50 : 3,190.64 = 3,190.64 : x
  2. Step 2: Convert to fraction form
    1,903.50/3,190.64 = 3,190.64/x
  3. Step 3: Cross multiply
    1,903.50x = 3,190.64 × 3,190.64
  4. Step 4: Simplify right side
    1,903.50x = 10,180,187.60
  5. Step 5: Solve for x
    x = 10,180,187.60/1,903.50
  6. Step 6: Final answer
    x = 5,348.14

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.