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Finding the Fourth Proportional to 17,866.92, 26,800.79 and 6,778.83

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Solution

The fourth proportional to 17,866.92, 26,800.79 and 6,778.83 is: 10,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,866.92 : 26,800.79 = 6,778.83 : x
  2. Step 2: Convert to fraction form
    17,866.92/26,800.79 = 6,778.83/x
  3. Step 3: Cross multiply
    17,866.92x = 26,800.79 × 6,778.83
  4. Step 4: Simplify right side
    17,866.92x = 181,677,965.38
  5. Step 5: Solve for x
    x = 181,677,965.38/17,866.92
  6. Step 6: Final answer
    x = 10,168.40

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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.