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Finding the Third Proportional to 1,928,653 and 4,200,169

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Solution

The third proportional to 1,928,653 and 4,200,169 is: 9,147,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,653 : 4,200,169 = 4,200,169 : x
  2. Step 2: Convert to fraction form
    1,928,653/4,200,169 = 4,200,169/x
  3. Step 3: Cross multiply
    1,928,653x = 4,200,169 × 4,200,169
  4. Step 4: Simplify right side
    1,928,653x = 17,641,419,628,561
  5. Step 5: Solve for x
    x = 17,641,419,628,561/1,928,653
  6. Step 6: Final answer
    x = 9,147,015.89

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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.