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Finding the Fourth Proportional to 13,362.11, 20,063.41 and 10,611.09

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Solution

The fourth proportional to 13,362.11, 20,063.41 and 10,611.09 is: 15,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.11 : 20,063.41 = 10,611.09 : x
  2. Step 2: Convert to fraction form
    13,362.11/20,063.41 = 10,611.09/x
  3. Step 3: Cross multiply
    13,362.11x = 20,063.41 × 10,611.09
  4. Step 4: Simplify right side
    13,362.11x = 212,894,609.40
  5. Step 5: Solve for x
    x = 212,894,609.40/13,362.11
  6. Step 6: Final answer
    x = 15,932.70

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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.