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Finding the Third Proportional to 1,912,456.50 and 4,161,378

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Solution

The third proportional to 1,912,456.50 and 4,161,378 is: 9,054,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,456.50 : 4,161,378 = 4,161,378 : x
  2. Step 2: Convert to fraction form
    1,912,456.50/4,161,378 = 4,161,378/x
  3. Step 3: Cross multiply
    1,912,456.50x = 4,161,378 × 4,161,378
  4. Step 4: Simplify right side
    1,912,456.50x = 17,317,066,858,884
  5. Step 5: Solve for x
    x = 17,317,066,858,884/1,912,456.50
  6. Step 6: Final answer
    x = 9,054,881.44

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.