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Finding the Third Proportional to 43,212,488 and 66,888,982

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Solution

The third proportional to 43,212,488 and 66,888,982 is: 103,538,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,212,488 : 66,888,982 = 66,888,982 : x
  2. Step 2: Convert to fraction form
    43,212,488/66,888,982 = 66,888,982/x
  3. Step 3: Cross multiply
    43,212,488x = 66,888,982 × 66,888,982
  4. Step 4: Simplify right side
    43,212,488x = 4,474,135,912,996,324
  5. Step 5: Solve for x
    x = 4,474,135,912,996,324/43,212,488
  6. Step 6: Final answer
    x = 103,538,030.79

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.