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Finding the Fourth Proportional to 8,958.41, 12,362.04 and 4,979.37

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Solution

The fourth proportional to 8,958.41, 12,362.04 and 4,979.37 is: 6,871.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.41 : 12,362.04 = 4,979.37 : x
  2. Step 2: Convert to fraction form
    8,958.41/12,362.04 = 4,979.37/x
  3. Step 3: Cross multiply
    8,958.41x = 12,362.04 × 4,979.37
  4. Step 4: Simplify right side
    8,958.41x = 61,555,171.11
  5. Step 5: Solve for x
    x = 61,555,171.11/8,958.41
  6. Step 6: Final answer
    x = 6,871.22

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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.