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Finding the Fourth Proportional to 13,361,281.80, 20,041,922.70 and 11,846,674.95

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Solution

The fourth proportional to 13,361,281.80, 20,041,922.70 and 11,846,674.95 is: 17,770,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,281.80 : 20,041,922.70 = 11,846,674.95 : x
  2. Step 2: Convert to fraction form
    13,361,281.80/20,041,922.70 = 11,846,674.95/x
  3. Step 3: Cross multiply
    13,361,281.80x = 20,041,922.70 × 11,846,674.95
  4. Step 4: Simplify right side
    13,361,281.80x = 237,430,143,599,926.34
  5. Step 5: Solve for x
    x = 237,430,143,599,926.34/13,361,281.80
  6. Step 6: Final answer
    x = 17,770,012.43

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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.