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Finding the Fourth Proportional to 8,368,550.80, 12,554,964.60 and 2,688,830.80

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Solution

The fourth proportional to 8,368,550.80, 12,554,964.60 and 2,688,830.80 is: 4,033,933.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368,550.80 : 12,554,964.60 = 2,688,830.80 : x
  2. Step 2: Convert to fraction form
    8,368,550.80/12,554,964.60 = 2,688,830.80/x
  3. Step 3: Cross multiply
    8,368,550.80x = 12,554,964.60 × 2,688,830.80
  4. Step 4: Simplify right side
    8,368,550.80x = 33,758,175,509,389.68
  5. Step 5: Solve for x
    x = 33,758,175,509,389.68/8,368,550.80
  6. Step 6: Final answer
    x = 4,033,933.27

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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.