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Finding the Fourth Proportional to 29,928.20, 44,885.10 and 9,151.88

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Solution

The fourth proportional to 29,928.20, 44,885.10 and 9,151.88 is: 13,725.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,928.20 : 44,885.10 = 9,151.88 : x
  2. Step 2: Convert to fraction form
    29,928.20/44,885.10 = 9,151.88/x
  3. Step 3: Cross multiply
    29,928.20x = 44,885.10 × 9,151.88
  4. Step 4: Simplify right side
    29,928.20x = 410,783,048.99
  5. Step 5: Solve for x
    x = 410,783,048.99/29,928.20
  6. Step 6: Final answer
    x = 13,725.62

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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.