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Finding the Third Proportional to 19,358,571 and 42,131,047

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Solution

The third proportional to 19,358,571 and 42,131,047 is: 91,691,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358,571 : 42,131,047 = 42,131,047 : x
  2. Step 2: Convert to fraction form
    19,358,571/42,131,047 = 42,131,047/x
  3. Step 3: Cross multiply
    19,358,571x = 42,131,047 × 42,131,047
  4. Step 4: Simplify right side
    19,358,571x = 1,775,025,121,316,209
  5. Step 5: Solve for x
    x = 1,775,025,121,316,209/19,358,571
  6. Step 6: Final answer
    x = 91,691,949.85

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