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Finding the Fourth Proportional to 47,474.01, 71,202.90 and 15,879.69

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Solution

The fourth proportional to 47,474.01, 71,202.90 and 15,879.69 is: 23,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,474.01 : 71,202.90 = 15,879.69 : x
  2. Step 2: Convert to fraction form
    47,474.01/71,202.90 = 15,879.69/x
  3. Step 3: Cross multiply
    47,474.01x = 71,202.90 × 15,879.69
  4. Step 4: Simplify right side
    47,474.01x = 1,130,679,979.10
  5. Step 5: Solve for x
    x = 1,130,679,979.10/47,474.01
  6. Step 6: Final answer
    x = 23,816.82

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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.