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Finding the Fourth Proportional to 4,935.12, 6,858.78 and 4,883.28

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Solution

The fourth proportional to 4,935.12, 6,858.78 and 4,883.28 is: 6,786.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,935.12 : 6,858.78 = 4,883.28 : x
  2. Step 2: Convert to fraction form
    4,935.12/6,858.78 = 4,883.28/x
  3. Step 3: Cross multiply
    4,935.12x = 6,858.78 × 4,883.28
  4. Step 4: Simplify right side
    4,935.12x = 33,493,343.20
  5. Step 5: Solve for x
    x = 33,493,343.20/4,935.12
  6. Step 6: Final answer
    x = 6,786.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.