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Finding the Third Proportional to 18,888,532 and 40,046,990

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Solution

The third proportional to 18,888,532 and 40,046,990 is: 84,906,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888,532 : 40,046,990 = 40,046,990 : x
  2. Step 2: Convert to fraction form
    18,888,532/40,046,990 = 40,046,990/x
  3. Step 3: Cross multiply
    18,888,532x = 40,046,990 × 40,046,990
  4. Step 4: Simplify right side
    18,888,532x = 1,603,761,408,060,100
  5. Step 5: Solve for x
    x = 1,603,761,408,060,100/18,888,532
  6. Step 6: Final answer
    x = 84,906,619.96

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.