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Finding the Fourth Proportional to 13,361,202.20, 20,041,803.30 and 11,448,014.60

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Solution

The fourth proportional to 13,361,202.20, 20,041,803.30 and 11,448,014.60 is: 17,172,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,202.20 : 20,041,803.30 = 11,448,014.60 : x
  2. Step 2: Convert to fraction form
    13,361,202.20/20,041,803.30 = 11,448,014.60/x
  3. Step 3: Cross multiply
    13,361,202.20x = 20,041,803.30 × 11,448,014.60
  4. Step 4: Simplify right side
    13,361,202.20x = 229,438,856,788,728.19
  5. Step 5: Solve for x
    x = 229,438,856,788,728.19/13,361,202.20
  6. Step 6: Final answer
    x = 17,172,021.90

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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.