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Finding the Fourth Proportional to 8,940.01, 13,404.79 and 2,698.15

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Solution

The fourth proportional to 8,940.01, 13,404.79 and 2,698.15 is: 4,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.01 : 13,404.79 = 2,698.15 : x
  2. Step 2: Convert to fraction form
    8,940.01/13,404.79 = 2,698.15/x
  3. Step 3: Cross multiply
    8,940.01x = 13,404.79 × 2,698.15
  4. Step 4: Simplify right side
    8,940.01x = 36,168,053.62
  5. Step 5: Solve for x
    x = 36,168,053.62/8,940.01
  6. Step 6: Final answer
    x = 4,045.64

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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.