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Finding the Third Proportional to 11,706.19 and 20,813.63

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Solution

The third proportional to 11,706.19 and 20,813.63 is: 37,006.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,706.19 : 20,813.63 = 20,813.63 : x
  2. Step 2: Convert to fraction form
    11,706.19/20,813.63 = 20,813.63/x
  3. Step 3: Cross multiply
    11,706.19x = 20,813.63 × 20,813.63
  4. Step 4: Simplify right side
    11,706.19x = 433,206,985.64
  5. Step 5: Solve for x
    x = 433,206,985.64/11,706.19
  6. Step 6: Final answer
    x = 37,006.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.