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Finding the Third Proportional to 1,239,913 and 2,628,622

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Solution

The third proportional to 1,239,913 and 2,628,622 is: 5,572,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,913 : 2,628,622 = 2,628,622 : x
  2. Step 2: Convert to fraction form
    1,239,913/2,628,622 = 2,628,622/x
  3. Step 3: Cross multiply
    1,239,913x = 2,628,622 × 2,628,622
  4. Step 4: Simplify right side
    1,239,913x = 6,909,653,618,884
  5. Step 5: Solve for x
    x = 6,909,653,618,884/1,239,913
  6. Step 6: Final answer
    x = 5,572,692.29

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.