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Finding the Fourth Proportional to 22,365,784.80, 33,525,057.60 and 12,760,480.80

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Solution

The fourth proportional to 22,365,784.80, 33,525,057.60 and 12,760,480.80 is: 19,127,245.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,365,784.80 : 33,525,057.60 = 12,760,480.80 : x
  2. Step 2: Convert to fraction form
    22,365,784.80/33,525,057.60 = 12,760,480.80/x
  3. Step 3: Cross multiply
    22,365,784.80x = 33,525,057.60 × 12,760,480.80
  4. Step 4: Simplify right side
    22,365,784.80x = 427,795,853,823,694.12
  5. Step 5: Solve for x
    x = 427,795,853,823,694.12/22,365,784.80
  6. Step 6: Final answer
    x = 19,127,245.37

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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.