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Finding the Fourth Proportional to 2,975.60, 4,461.60 and 1,331.84

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Solution

The fourth proportional to 2,975.60, 4,461.60 and 1,331.84 is: 1,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.60 : 4,461.60 = 1,331.84 : x
  2. Step 2: Convert to fraction form
    2,975.60/4,461.60 = 1,331.84/x
  3. Step 3: Cross multiply
    2,975.60x = 4,461.60 × 1,331.84
  4. Step 4: Simplify right side
    2,975.60x = 5,942,137.34
  5. Step 5: Solve for x
    x = 5,942,137.34/2,975.60
  6. Step 6: Final answer
    x = 1,996.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.