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Finding the Fourth Proportional to 2,940.75, 4,412.97 and 1,708.74

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Solution

The fourth proportional to 2,940.75, 4,412.97 and 1,708.74 is: 2,564.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.75 : 4,412.97 = 1,708.74 : x
  2. Step 2: Convert to fraction form
    2,940.75/4,412.97 = 1,708.74/x
  3. Step 3: Cross multiply
    2,940.75x = 4,412.97 × 1,708.74
  4. Step 4: Simplify right side
    2,940.75x = 7,540,618.36
  5. Step 5: Solve for x
    x = 7,540,618.36/2,940.75
  6. Step 6: Final answer
    x = 2,564.18

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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.