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Finding the Third Proportional to 19,942,072 and 43,378,199

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Solution

The third proportional to 19,942,072 and 43,378,199 is: 94,356,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942,072 : 43,378,199 = 43,378,199 : x
  2. Step 2: Convert to fraction form
    19,942,072/43,378,199 = 43,378,199/x
  3. Step 3: Cross multiply
    19,942,072x = 43,378,199 × 43,378,199
  4. Step 4: Simplify right side
    19,942,072x = 1,881,668,148,483,601
  5. Step 5: Solve for x
    x = 1,881,668,148,483,601/19,942,072
  6. Step 6: Final answer
    x = 94,356,702.18

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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.