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Finding the Fourth Proportional to 4,842.44, 6,679.86 and 2,979.08

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Solution

The fourth proportional to 4,842.44, 6,679.86 and 2,979.08 is: 4,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.44 : 6,679.86 = 2,979.08 : x
  2. Step 2: Convert to fraction form
    4,842.44/6,679.86 = 2,979.08/x
  3. Step 3: Cross multiply
    4,842.44x = 6,679.86 × 2,979.08
  4. Step 4: Simplify right side
    4,842.44x = 19,899,837.33
  5. Step 5: Solve for x
    x = 19,899,837.33/4,842.44
  6. Step 6: Final answer
    x = 4,109.46

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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.