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Finding the Fourth Proportional to 13,535.44, 18,672.06 and 9,059.38

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Solution

The fourth proportional to 13,535.44, 18,672.06 and 9,059.38 is: 12,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.44 : 18,672.06 = 9,059.38 : x
  2. Step 2: Convert to fraction form
    13,535.44/18,672.06 = 9,059.38/x
  3. Step 3: Cross multiply
    13,535.44x = 18,672.06 × 9,059.38
  4. Step 4: Simplify right side
    13,535.44x = 169,157,286.92
  5. Step 5: Solve for x
    x = 169,157,286.92/13,535.44
  6. Step 6: Final answer
    x = 12,497.36

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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.