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Finding the Third Proportional to 18,268,153 and 38,047,660

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Solution

The third proportional to 18,268,153 and 38,047,660 is: 79,243,064.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268,153 : 38,047,660 = 38,047,660 : x
  2. Step 2: Convert to fraction form
    18,268,153/38,047,660 = 38,047,660/x
  3. Step 3: Cross multiply
    18,268,153x = 38,047,660 × 38,047,660
  4. Step 4: Simplify right side
    18,268,153x = 1,447,624,431,475,600
  5. Step 5: Solve for x
    x = 1,447,624,431,475,600/18,268,153
  6. Step 6: Final answer
    x = 79,243,064.77

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.