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Finding the Fourth Proportional to 18,456.96, 27,669.06 and 6,767.49

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Solution

The fourth proportional to 18,456.96, 27,669.06 and 6,767.49 is: 10,145.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.96 : 27,669.06 = 6,767.49 : x
  2. Step 2: Convert to fraction form
    18,456.96/27,669.06 = 6,767.49/x
  3. Step 3: Cross multiply
    18,456.96x = 27,669.06 × 6,767.49
  4. Step 4: Simplify right side
    18,456.96x = 187,250,086.86
  5. Step 5: Solve for x
    x = 187,250,086.86/18,456.96
  6. Step 6: Final answer
    x = 10,145.23

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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.