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Finding the Fourth Proportional to 34,544.82, 47,679.82 and 20,211.32

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Solution

The fourth proportional to 34,544.82, 47,679.82 and 20,211.32 is: 27,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,544.82 : 47,679.82 = 20,211.32 : x
  2. Step 2: Convert to fraction form
    34,544.82/47,679.82 = 20,211.32/x
  3. Step 3: Cross multiply
    34,544.82x = 47,679.82 × 20,211.32
  4. Step 4: Simplify right side
    34,544.82x = 963,672,099.56
  5. Step 5: Solve for x
    x = 963,672,099.56/34,544.82
  6. Step 6: Final answer
    x = 27,896.28

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1.5x scale

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.