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Finding the Third Proportional to 4,075,977 and 8,790,357

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Solution

The third proportional to 4,075,977 and 8,790,357 is: 18,957,510.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,075,977 : 8,790,357 = 8,790,357 : x
  2. Step 2: Convert to fraction form
    4,075,977/8,790,357 = 8,790,357/x
  3. Step 3: Cross multiply
    4,075,977x = 8,790,357 × 8,790,357
  4. Step 4: Simplify right side
    4,075,977x = 77,270,376,187,449
  5. Step 5: Solve for x
    x = 77,270,376,187,449/4,075,977
  6. Step 6: Final answer
    x = 18,957,510.36

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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.