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Finding the Third Proportional to 7,261,326 and 15,642,990

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Solution

The third proportional to 7,261,326 and 15,642,990 is: 33,699,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261,326 : 15,642,990 = 15,642,990 : x
  2. Step 2: Convert to fraction form
    7,261,326/15,642,990 = 15,642,990/x
  3. Step 3: Cross multiply
    7,261,326x = 15,642,990 × 15,642,990
  4. Step 4: Simplify right side
    7,261,326x = 244,703,136,140,100
  5. Step 5: Solve for x
    x = 244,703,136,140,100/7,261,326
  6. Step 6: Final answer
    x = 33,699,511.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.