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Finding the Fourth Proportional to 33,986,973.40, 50,973,375.30 and 12,431,728.60

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Solution

The fourth proportional to 33,986,973.40, 50,973,375.30 and 12,431,728.60 is: 18,645,001.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,986,973.40 : 50,973,375.30 = 12,431,728.60 : x
  2. Step 2: Convert to fraction form
    33,986,973.40/50,973,375.30 = 12,431,728.60/x
  3. Step 3: Cross multiply
    33,986,973.40x = 50,973,375.30 × 12,431,728.60
  4. Step 4: Simplify right side
    33,986,973.40x = 633,687,167,555,543.50
  5. Step 5: Solve for x
    x = 633,687,167,555,543.50/33,986,973.40
  6. Step 6: Final answer
    x = 18,645,001.43

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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.