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Finding the Third Proportional to 19,018,638 and 28,891,647

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Solution

The third proportional to 19,018,638 and 28,891,647 is: 43,889,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018,638 : 28,891,647 = 28,891,647 : x
  2. Step 2: Convert to fraction form
    19,018,638/28,891,647 = 28,891,647/x
  3. Step 3: Cross multiply
    19,018,638x = 28,891,647 × 28,891,647
  4. Step 4: Simplify right side
    19,018,638x = 834,727,266,372,609
  5. Step 5: Solve for x
    x = 834,727,266,372,609/19,018,638
  6. Step 6: Final answer
    x = 43,889,960.28

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.