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Finding the Third Proportional to 20,642,878.69 and 30,962,314.69

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Solution

The third proportional to 20,642,878.69 and 30,962,314.69 is: 46,440,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642,878.69 : 30,962,314.69 = 30,962,314.69 : x
  2. Step 2: Convert to fraction form
    20,642,878.69/30,962,314.69 = 30,962,314.69/x
  3. Step 3: Cross multiply
    20,642,878.69x = 30,962,314.69 × 30,962,314.69
  4. Step 4: Simplify right side
    20,642,878.69x = 958,664,930,807,778.25
  5. Step 5: Solve for x
    x = 958,664,930,807,778.25/20,642,878.69
  6. Step 6: Final answer
    x = 46,440,467.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.