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Finding the Fourth Proportional to 69,958.60, 104,899.41 and 47,797

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Solution

The fourth proportional to 69,958.60, 104,899.41 and 47,797 is: 71,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,958.60 : 104,899.41 = 47,797 : x
  2. Step 2: Convert to fraction form
    69,958.60/104,899.41 = 47,797/x
  3. Step 3: Cross multiply
    69,958.60x = 104,899.41 × 47,797
  4. Step 4: Simplify right side
    69,958.60x = 5,013,877,099.77
  5. Step 5: Solve for x
    x = 5,013,877,099.77/69,958.60
  6. Step 6: Final answer
    x = 71,669.20

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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.