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Finding the Fourth Proportional to 57,245.70, 85,859.37 and 15,682.98

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Solution

The fourth proportional to 57,245.70, 85,859.37 and 15,682.98 is: 23,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,245.70 : 85,859.37 = 15,682.98 : x
  2. Step 2: Convert to fraction form
    57,245.70/85,859.37 = 15,682.98/x
  3. Step 3: Cross multiply
    57,245.70x = 85,859.37 × 15,682.98
  4. Step 4: Simplify right side
    57,245.70x = 1,346,530,782.52
  5. Step 5: Solve for x
    x = 1,346,530,782.52/57,245.70
  6. Step 6: Final answer
    x = 23,521.96

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1.5x scale

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.