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Finding the Third Proportional to 1,903.13 and 3,858.56

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Solution

The third proportional to 1,903.13 and 3,858.56 is: 7,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.13 : 3,858.56 = 3,858.56 : x
  2. Step 2: Convert to fraction form
    1,903.13/3,858.56 = 3,858.56/x
  3. Step 3: Cross multiply
    1,903.13x = 3,858.56 × 3,858.56
  4. Step 4: Simplify right side
    1,903.13x = 14,888,504.57
  5. Step 5: Solve for x
    x = 14,888,504.57/1,903.13
  6. Step 6: Final answer
    x = 7,823.19

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.