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Finding the Fourth Proportional to 33,577,978.80, 50,366,968.20 and 10,861,172.40

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Solution

The fourth proportional to 33,577,978.80, 50,366,968.20 and 10,861,172.40 is: 16,291,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,577,978.80 : 50,366,968.20 = 10,861,172.40 : x
  2. Step 2: Convert to fraction form
    33,577,978.80/50,366,968.20 = 10,861,172.40/x
  3. Step 3: Cross multiply
    33,577,978.80x = 50,366,968.20 × 10,861,172.40
  4. Step 4: Simplify right side
    33,577,978.80x = 547,044,324,885,517.75
  5. Step 5: Solve for x
    x = 547,044,324,885,517.75/33,577,978.80
  6. Step 6: Final answer
    x = 16,291,758.60

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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.