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Finding the Fourth Proportional to 56,611.98, 78,104.60 and 33,958.31

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Solution

The fourth proportional to 56,611.98, 78,104.60 and 33,958.31 is: 46,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,611.98 : 78,104.60 = 33,958.31 : x
  2. Step 2: Convert to fraction form
    56,611.98/78,104.60 = 33,958.31/x
  3. Step 3: Cross multiply
    56,611.98x = 78,104.60 × 33,958.31
  4. Step 4: Simplify right side
    56,611.98x = 2,652,299,658.91
  5. Step 5: Solve for x
    x = 2,652,299,658.91/56,611.98
  6. Step 6: Final answer
    x = 46,850.50

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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.