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Finding the Third Proportional to 19,731,078 and 43,047,681

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Solution

The third proportional to 19,731,078 and 43,047,681 is: 93,917,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731,078 : 43,047,681 = 43,047,681 : x
  2. Step 2: Convert to fraction form
    19,731,078/43,047,681 = 43,047,681/x
  3. Step 3: Cross multiply
    19,731,078x = 43,047,681 × 43,047,681
  4. Step 4: Simplify right side
    19,731,078x = 1,853,102,839,477,761
  5. Step 5: Solve for x
    x = 1,853,102,839,477,761/19,731,078
  6. Step 6: Final answer
    x = 93,917,972.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.