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Finding the Fourth Proportional to 15,976.71, 23,958.99 and 4,879.98

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Solution

The fourth proportional to 15,976.71, 23,958.99 and 4,879.98 is: 7,318.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,976.71 : 23,958.99 = 4,879.98 : x
  2. Step 2: Convert to fraction form
    15,976.71/23,958.99 = 4,879.98/x
  3. Step 3: Cross multiply
    15,976.71x = 23,958.99 × 4,879.98
  4. Step 4: Simplify right side
    15,976.71x = 116,919,392.02
  5. Step 5: Solve for x
    x = 116,919,392.02/15,976.71
  6. Step 6: Final answer
    x = 7,318.11

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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.