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Finding the Fourth Proportional to 2,894.70, 3,992.18 and 2,334.99

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Solution

The fourth proportional to 2,894.70, 3,992.18 and 2,334.99 is: 3,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.70 : 3,992.18 = 2,334.99 : x
  2. Step 2: Convert to fraction form
    2,894.70/3,992.18 = 2,334.99/x
  3. Step 3: Cross multiply
    2,894.70x = 3,992.18 × 2,334.99
  4. Step 4: Simplify right side
    2,894.70x = 9,321,688.70
  5. Step 5: Solve for x
    x = 9,321,688.70/2,894.70
  6. Step 6: Final answer
    x = 3,220.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.