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Finding the Fourth Proportional to 33,401,992.40, 50,102,988.60 and 20,647,408.40

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Solution

The fourth proportional to 33,401,992.40, 50,102,988.60 and 20,647,408.40 is: 30,971,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,401,992.40 : 50,102,988.60 = 20,647,408.40 : x
  2. Step 2: Convert to fraction form
    33,401,992.40/50,102,988.60 = 20,647,408.40/x
  3. Step 3: Cross multiply
    33,401,992.40x = 50,102,988.60 × 20,647,408.40
  4. Step 4: Simplify right side
    33,401,992.40x = 1,034,496,867,684,744.25
  5. Step 5: Solve for x
    x = 1,034,496,867,684,744.25/33,401,992.40
  6. Step 6: Final answer
    x = 30,971,112.60

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1.5x scale

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.