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Finding the Fourth Proportional to 16,659.81, 22,958.89 and 11,935.89

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Solution

The fourth proportional to 16,659.81, 22,958.89 and 11,935.89 is: 16,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,659.81 : 22,958.89 = 11,935.89 : x
  2. Step 2: Convert to fraction form
    16,659.81/22,958.89 = 11,935.89/x
  3. Step 3: Cross multiply
    16,659.81x = 22,958.89 × 11,935.89
  4. Step 4: Simplify right side
    16,659.81x = 274,034,785.56
  5. Step 5: Solve for x
    x = 274,034,785.56/16,659.81
  6. Step 6: Final answer
    x = 16,448.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.