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Finding the Fourth Proportional to 13,773,682.20, 20,660,523.30 and 11,647,918.20

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Solution

The fourth proportional to 13,773,682.20, 20,660,523.30 and 11,647,918.20 is: 17,471,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773,682.20 : 20,660,523.30 = 11,647,918.20 : x
  2. Step 2: Convert to fraction form
    13,773,682.20/20,660,523.30 = 11,647,918.20/x
  3. Step 3: Cross multiply
    13,773,682.20x = 20,660,523.30 × 11,647,918.20
  4. Step 4: Simplify right side
    13,773,682.20x = 240,652,085,367,594.06
  5. Step 5: Solve for x
    x = 240,652,085,367,594.06/13,773,682.20
  6. Step 6: Final answer
    x = 17,471,877.30

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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.