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Finding the Fourth Proportional to 11,789,942.40, 17,684,913.60 and 11,789,942.40

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Solution

The fourth proportional to 11,789,942.40, 17,684,913.60 and 11,789,942.40 is: 17,684,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789,942.40 : 17,684,913.60 = 11,789,942.40 : x
  2. Step 2: Convert to fraction form
    11,789,942.40/17,684,913.60 = 11,789,942.40/x
  3. Step 3: Cross multiply
    11,789,942.40x = 17,684,913.60 × 11,789,942.40
  4. Step 4: Simplify right side
    11,789,942.40x = 208,504,112,692,976.66
  5. Step 5: Solve for x
    x = 208,504,112,692,976.66/11,789,942.40
  6. Step 6: Final answer
    x = 17,684,913.60

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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.