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Finding the Fourth Proportional to 34,601.68, 47,750.84 and 20,455.84

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Solution

The fourth proportional to 34,601.68, 47,750.84 and 20,455.84 is: 28,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,601.68 : 47,750.84 = 20,455.84 : x
  2. Step 2: Convert to fraction form
    34,601.68/47,750.84 = 20,455.84/x
  3. Step 3: Cross multiply
    34,601.68x = 47,750.84 × 20,455.84
  4. Step 4: Simplify right side
    34,601.68x = 976,783,542.91
  5. Step 5: Solve for x
    x = 976,783,542.91/34,601.68
  6. Step 6: Final answer
    x = 28,229.37

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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.