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Finding the Fourth Proportional to 33,264,978.80, 49,860,143.40 and 18,894,930.80

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Solution

The fourth proportional to 33,264,978.80, 49,860,143.40 and 18,894,930.80 is: 28,321,195.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,264,978.80 : 49,860,143.40 = 18,894,930.80 : x
  2. Step 2: Convert to fraction form
    33,264,978.80/49,860,143.40 = 18,894,930.80/x
  3. Step 3: Cross multiply
    33,264,978.80x = 49,860,143.40 × 18,894,930.80
  4. Step 4: Simplify right side
    33,264,978.80x = 942,103,959,221,076.75
  5. Step 5: Solve for x
    x = 942,103,959,221,076.75/33,264,978.80
  6. Step 6: Final answer
    x = 28,321,195.24

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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.