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Finding the Third Proportional to 1,939.52 and 4,186.48

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Solution

The third proportional to 1,939.52 and 4,186.48 is: 9,036.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.52 : 4,186.48 = 4,186.48 : x
  2. Step 2: Convert to fraction form
    1,939.52/4,186.48 = 4,186.48/x
  3. Step 3: Cross multiply
    1,939.52x = 4,186.48 × 4,186.48
  4. Step 4: Simplify right side
    1,939.52x = 17,526,586.01
  5. Step 5: Solve for x
    x = 17,526,586.01/1,939.52
  6. Step 6: Final answer
    x = 9,036.54

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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.