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Finding the Fourth Proportional to 1,910.50, 2,636.53 and 1,082.50

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Solution

The fourth proportional to 1,910.50, 2,636.53 and 1,082.50 is: 1,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.50 : 2,636.53 = 1,082.50 : x
  2. Step 2: Convert to fraction form
    1,910.50/2,636.53 = 1,082.50/x
  3. Step 3: Cross multiply
    1,910.50x = 2,636.53 × 1,082.50
  4. Step 4: Simplify right side
    1,910.50x = 2,854,043.73
  5. Step 5: Solve for x
    x = 2,854,043.73/1,910.50
  6. Step 6: Final answer
    x = 1,493.87

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