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Finding the Fourth Proportional to 38,600.53, 57,893.91 and 20,822.92

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Solution

The fourth proportional to 38,600.53, 57,893.91 and 20,822.92 is: 31,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,600.53 : 57,893.91 = 20,822.92 : x
  2. Step 2: Convert to fraction form
    38,600.53/57,893.91 = 20,822.92/x
  3. Step 3: Cross multiply
    38,600.53x = 57,893.91 × 20,822.92
  4. Step 4: Simplify right side
    38,600.53x = 1,205,520,256.42
  5. Step 5: Solve for x
    x = 1,205,520,256.42/38,600.53
  6. Step 6: Final answer
    x = 31,230.67

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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.