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Finding the Fourth Proportional to 13,059.09, 18,047.21 and 11,601.09

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Solution

The fourth proportional to 13,059.09, 18,047.21 and 11,601.09 is: 16,032.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.09 : 18,047.21 = 11,601.09 : x
  2. Step 2: Convert to fraction form
    13,059.09/18,047.21 = 11,601.09/x
  3. Step 3: Cross multiply
    13,059.09x = 18,047.21 × 11,601.09
  4. Step 4: Simplify right side
    13,059.09x = 209,367,249.45
  5. Step 5: Solve for x
    x = 209,367,249.45/13,059.09
  6. Step 6: Final answer
    x = 16,032.30

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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.