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Finding the Fourth Proportional to 12,288.92, 16,958.66 and 6,699.92

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Solution

The fourth proportional to 12,288.92, 16,958.66 and 6,699.92 is: 9,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.92 : 16,958.66 = 6,699.92 : x
  2. Step 2: Convert to fraction form
    12,288.92/16,958.66 = 6,699.92/x
  3. Step 3: Cross multiply
    12,288.92x = 16,958.66 × 6,699.92
  4. Step 4: Simplify right side
    12,288.92x = 113,621,665.31
  5. Step 5: Solve for x
    x = 113,621,665.31/12,288.92
  6. Step 6: Final answer
    x = 9,245.86

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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.