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Finding the Fourth Proportional to 23,789.70, 32,830.02 and 13,179.48

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Solution

The fourth proportional to 23,789.70, 32,830.02 and 13,179.48 is: 18,187.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,789.70 : 32,830.02 = 13,179.48 : x
  2. Step 2: Convert to fraction form
    23,789.70/32,830.02 = 13,179.48/x
  3. Step 3: Cross multiply
    23,789.70x = 32,830.02 × 13,179.48
  4. Step 4: Simplify right side
    23,789.70x = 432,682,591.99
  5. Step 5: Solve for x
    x = 432,682,591.99/23,789.70
  6. Step 6: Final answer
    x = 18,187.81

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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.