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Finding the Fourth Proportional to 1,372.14, 1,892.11 and 1,036.82

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Solution

The fourth proportional to 1,372.14, 1,892.11 and 1,036.82 is: 1,429.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.14 : 1,892.11 = 1,036.82 : x
  2. Step 2: Convert to fraction form
    1,372.14/1,892.11 = 1,036.82/x
  3. Step 3: Cross multiply
    1,372.14x = 1,892.11 × 1,036.82
  4. Step 4: Simplify right side
    1,372.14x = 1,961,770.93
  5. Step 5: Solve for x
    x = 1,961,770.93/1,372.14
  6. Step 6: Final answer
    x = 1,429.72

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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.