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Finding the Fourth Proportional to 12,253,289.60, 18,379,934.40 and 12,253,289.60

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Solution

The fourth proportional to 12,253,289.60, 18,379,934.40 and 12,253,289.60 is: 18,379,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253,289.60 : 18,379,934.40 = 12,253,289.60 : x
  2. Step 2: Convert to fraction form
    12,253,289.60/18,379,934.40 = 12,253,289.60/x
  3. Step 3: Cross multiply
    12,253,289.60x = 18,379,934.40 × 12,253,289.60
  4. Step 4: Simplify right side
    12,253,289.60x = 225,214,659,032,202.22
  5. Step 5: Solve for x
    x = 225,214,659,032,202.22/12,253,289.60
  6. Step 6: Final answer
    x = 18,379,934.40

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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.