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Finding the Fourth Proportional to 7,936.58, 11,891.89 and 4,807.10

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Solution

The fourth proportional to 7,936.58, 11,891.89 and 4,807.10 is: 7,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.58 : 11,891.89 = 4,807.10 : x
  2. Step 2: Convert to fraction form
    7,936.58/11,891.89 = 4,807.10/x
  3. Step 3: Cross multiply
    7,936.58x = 11,891.89 × 4,807.10
  4. Step 4: Simplify right side
    7,936.58x = 57,165,540.16
  5. Step 5: Solve for x
    x = 57,165,540.16/7,936.58
  6. Step 6: Final answer
    x = 7,202.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.