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Finding the Fourth Proportional to 12,012.96, 18,006.48 and 10,716.96

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Solution

The fourth proportional to 12,012.96, 18,006.48 and 10,716.96 is: 16,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.96 : 18,006.48 = 10,716.96 : x
  2. Step 2: Convert to fraction form
    12,012.96/18,006.48 = 10,716.96/x
  3. Step 3: Cross multiply
    12,012.96x = 18,006.48 × 10,716.96
  4. Step 4: Simplify right side
    12,012.96x = 192,974,725.90
  5. Step 5: Solve for x
    x = 192,974,725.90/12,012.96
  6. Step 6: Final answer
    x = 16,063.88

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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.