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Finding the Fourth Proportional to 2,462.14, 3,692.56 and 981.30

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Solution

The fourth proportional to 2,462.14, 3,692.56 and 981.30 is: 1,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,462.14 : 3,692.56 = 981.30 : x
  2. Step 2: Convert to fraction form
    2,462.14/3,692.56 = 981.30/x
  3. Step 3: Cross multiply
    2,462.14x = 3,692.56 × 981.30
  4. Step 4: Simplify right side
    2,462.14x = 3,623,506.67
  5. Step 5: Solve for x
    x = 3,623,506.67/2,462.14
  6. Step 6: Final answer
    x = 1,471.69

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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.