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Finding the Fourth Proportional to 8,397,806.20, 12,597,938.10 and 2,717,063.80

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Solution

The fourth proportional to 8,397,806.20, 12,597,938.10 and 2,717,063.80 is: 4,075,993.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397,806.20 : 12,597,938.10 = 2,717,063.80 : x
  2. Step 2: Convert to fraction form
    8,397,806.20/12,597,938.10 = 2,717,063.80/x
  3. Step 3: Cross multiply
    8,397,806.20x = 12,597,938.10 × 2,717,063.80
  4. Step 4: Simplify right side
    8,397,806.20x = 34,229,401,566,150.78
  5. Step 5: Solve for x
    x = 34,229,401,566,150.78/8,397,806.20
  6. Step 6: Final answer
    x = 4,075,993.27

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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.