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Finding the Fourth Proportional to 5,754.12, 7,936.80 and 3,513.14

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Solution

The fourth proportional to 5,754.12, 7,936.80 and 3,513.14 is: 4,845.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,754.12 : 7,936.80 = 3,513.14 : x
  2. Step 2: Convert to fraction form
    5,754.12/7,936.80 = 3,513.14/x
  3. Step 3: Cross multiply
    5,754.12x = 7,936.80 × 3,513.14
  4. Step 4: Simplify right side
    5,754.12x = 27,883,049.87
  5. Step 5: Solve for x
    x = 27,883,049.87/5,754.12
  6. Step 6: Final answer
    x = 4,845.75

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1.5x scale

Why These Related Problems?

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