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Finding the Fourth Proportional to 29,472.72, 44,209.20 and 11,942.88

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Solution

The fourth proportional to 29,472.72, 44,209.20 and 11,942.88 is: 17,914.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,472.72 : 44,209.20 = 11,942.88 : x
  2. Step 2: Convert to fraction form
    29,472.72/44,209.20 = 11,942.88/x
  3. Step 3: Cross multiply
    29,472.72x = 44,209.20 × 11,942.88
  4. Step 4: Simplify right side
    29,472.72x = 527,985,170.50
  5. Step 5: Solve for x
    x = 527,985,170.50/29,472.72
  6. Step 6: Final answer
    x = 17,914.37

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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.