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Finding the Third Proportional to 18,734,996 and 39,943,489

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Solution

The third proportional to 18,734,996 and 39,943,489 is: 85,160,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734,996 : 39,943,489 = 39,943,489 : x
  2. Step 2: Convert to fraction form
    18,734,996/39,943,489 = 39,943,489/x
  3. Step 3: Cross multiply
    18,734,996x = 39,943,489 × 39,943,489
  4. Step 4: Simplify right side
    18,734,996x = 1,595,482,313,493,121
  5. Step 5: Solve for x
    x = 1,595,482,313,493,121/18,734,996
  6. Step 6: Final answer
    x = 85,160,536.65

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.