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Finding the Fourth Proportional to 16,556.91, 24,836.04 and 7,785.69

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Solution

The fourth proportional to 16,556.91, 24,836.04 and 7,785.69 is: 11,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,556.91 : 24,836.04 = 7,785.69 : x
  2. Step 2: Convert to fraction form
    16,556.91/24,836.04 = 7,785.69/x
  3. Step 3: Cross multiply
    16,556.91x = 24,836.04 × 7,785.69
  4. Step 4: Simplify right side
    16,556.91x = 193,365,708.27
  5. Step 5: Solve for x
    x = 193,365,708.27/16,556.91
  6. Step 6: Final answer
    x = 11,678.85

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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.