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Finding the Fourth Proportional to 2,381.41, 3,571.20 and 995.41

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Solution

The fourth proportional to 2,381.41, 3,571.20 and 995.41 is: 1,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.41 : 3,571.20 = 995.41 : x
  2. Step 2: Convert to fraction form
    2,381.41/3,571.20 = 995.41/x
  3. Step 3: Cross multiply
    2,381.41x = 3,571.20 × 995.41
  4. Step 4: Simplify right side
    2,381.41x = 3,554,808.19
  5. Step 5: Solve for x
    x = 3,554,808.19/2,381.41
  6. Step 6: Final answer
    x = 1,492.73

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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.