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Finding the Fourth Proportional to 47,690.60, 71,474.70 and 26,630.60

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Solution

The fourth proportional to 47,690.60, 71,474.70 and 26,630.60 is: 39,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,690.60 : 71,474.70 = 26,630.60 : x
  2. Step 2: Convert to fraction form
    47,690.60/71,474.70 = 26,630.60/x
  3. Step 3: Cross multiply
    47,690.60x = 71,474.70 × 26,630.60
  4. Step 4: Simplify right side
    47,690.60x = 1,903,414,145.82
  5. Step 5: Solve for x
    x = 1,903,414,145.82/47,690.60
  6. Step 6: Final answer
    x = 39,911.73

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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.