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Finding the Fourth Proportional to 8,796,615.80, 13,194,923.70 and 3,117,414.20

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Solution

The fourth proportional to 8,796,615.80, 13,194,923.70 and 3,117,414.20 is: 4,676,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796,615.80 : 13,194,923.70 = 3,117,414.20 : x
  2. Step 2: Convert to fraction form
    8,796,615.80/13,194,923.70 = 3,117,414.20/x
  3. Step 3: Cross multiply
    8,796,615.80x = 13,194,923.70 × 3,117,414.20
  4. Step 4: Simplify right side
    8,796,615.80x = 41,134,042,510,296.54
  5. Step 5: Solve for x
    x = 41,134,042,510,296.54/8,796,615.80
  6. Step 6: Final answer
    x = 4,676,121.30

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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.