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Finding the Fourth Proportional to 29,940.30, 44,910.45 and 9,163.80

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Solution

The fourth proportional to 29,940.30, 44,910.45 and 9,163.80 is: 13,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,940.30 : 44,910.45 = 9,163.80 : x
  2. Step 2: Convert to fraction form
    29,940.30/44,910.45 = 9,163.80/x
  3. Step 3: Cross multiply
    29,940.30x = 44,910.45 × 9,163.80
  4. Step 4: Simplify right side
    29,940.30x = 411,550,381.71
  5. Step 5: Solve for x
    x = 411,550,381.71/29,940.30
  6. Step 6: Final answer
    x = 13,745.70

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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.