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Finding the Fourth Proportional to 17,794,912.60, 26,692,368.90 and 12,084,218.20

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Solution

The fourth proportional to 17,794,912.60, 26,692,368.90 and 12,084,218.20 is: 18,126,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,794,912.60 : 26,692,368.90 = 12,084,218.20 : x
  2. Step 2: Convert to fraction form
    17,794,912.60/26,692,368.90 = 12,084,218.20/x
  3. Step 3: Cross multiply
    17,794,912.60x = 26,692,368.90 × 12,084,218.20
  4. Step 4: Simplify right side
    17,794,912.60x = 322,556,410,062,493.94
  5. Step 5: Solve for x
    x = 322,556,410,062,493.94/17,794,912.60
  6. Step 6: Final answer
    x = 18,126,327.30

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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.