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Finding the Third Proportional to 12,998.81 and 20,933.44

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Solution

The third proportional to 12,998.81 and 20,933.44 is: 33,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.81 : 20,933.44 = 20,933.44 : x
  2. Step 2: Convert to fraction form
    12,998.81/20,933.44 = 20,933.44/x
  3. Step 3: Cross multiply
    12,998.81x = 20,933.44 × 20,933.44
  4. Step 4: Simplify right side
    12,998.81x = 438,208,805.57
  5. Step 5: Solve for x
    x = 438,208,805.57/12,998.81
  6. Step 6: Final answer
    x = 33,711.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.