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Finding the Fourth Proportional to 2,004.98, 3,007.65 and 772.94

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Solution

The fourth proportional to 2,004.98, 3,007.65 and 772.94 is: 1,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.98 : 3,007.65 = 772.94 : x
  2. Step 2: Convert to fraction form
    2,004.98/3,007.65 = 772.94/x
  3. Step 3: Cross multiply
    2,004.98x = 3,007.65 × 772.94
  4. Step 4: Simplify right side
    2,004.98x = 2,324,732.99
  5. Step 5: Solve for x
    x = 2,324,732.99/2,004.98
  6. Step 6: Final answer
    x = 1,159.48

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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.