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Finding the Third Proportional to 19,728,190 and 43,227,740

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Solution

The third proportional to 19,728,190 and 43,227,740 is: 94,719,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728,190 : 43,227,740 = 43,227,740 : x
  2. Step 2: Convert to fraction form
    19,728,190/43,227,740 = 43,227,740/x
  3. Step 3: Cross multiply
    19,728,190x = 43,227,740 × 43,227,740
  4. Step 4: Simplify right side
    19,728,190x = 1,868,637,505,507,600
  5. Step 5: Solve for x
    x = 1,868,637,505,507,600/19,728,190
  6. Step 6: Final answer
    x = 94,719,155.96

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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.