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Finding the Third Proportional to 18,921,672 and 41,505,804

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Solution

The third proportional to 18,921,672 and 41,505,804 is: 91,045,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921,672 : 41,505,804 = 41,505,804 : x
  2. Step 2: Convert to fraction form
    18,921,672/41,505,804 = 41,505,804/x
  3. Step 3: Cross multiply
    18,921,672x = 41,505,804 × 41,505,804
  4. Step 4: Simplify right side
    18,921,672x = 1,722,731,765,686,416
  5. Step 5: Solve for x
    x = 1,722,731,765,686,416/18,921,672
  6. Step 6: Final answer
    x = 91,045,430.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.