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Finding the Fourth Proportional to 12,089,917.80, 16,948,279.80 and 12,089,917.80

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Solution

The fourth proportional to 12,089,917.80, 16,948,279.80 and 12,089,917.80 is: 16,948,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089,917.80 : 16,948,279.80 = 12,089,917.80 : x
  2. Step 2: Convert to fraction form
    12,089,917.80/16,948,279.80 = 12,089,917.80/x
  3. Step 3: Cross multiply
    12,089,917.80x = 16,948,279.80 × 12,089,917.80
  4. Step 4: Simplify right side
    12,089,917.80x = 204,903,309,633,400.47
  5. Step 5: Solve for x
    x = 204,903,309,633,400.47/12,089,917.80
  6. Step 6: Final answer
    x = 16,948,279.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.