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Finding the Fourth Proportional to 5,453.99, 8,126.87 and 5,189.52

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Solution

The fourth proportional to 5,453.99, 8,126.87 and 5,189.52 is: 7,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.99 : 8,126.87 = 5,189.52 : x
  2. Step 2: Convert to fraction form
    5,453.99/8,126.87 = 5,189.52/x
  3. Step 3: Cross multiply
    5,453.99x = 8,126.87 × 5,189.52
  4. Step 4: Simplify right side
    5,453.99x = 42,174,554.40
  5. Step 5: Solve for x
    x = 42,174,554.40/5,453.99
  6. Step 6: Final answer
    x = 7,732.79

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.