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Finding the Fourth Proportional to 11,958.06, 16,500.90 and 6,921.27

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Solution

The fourth proportional to 11,958.06, 16,500.90 and 6,921.27 is: 9,550.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958.06 : 16,500.90 = 6,921.27 : x
  2. Step 2: Convert to fraction form
    11,958.06/16,500.90 = 6,921.27/x
  3. Step 3: Cross multiply
    11,958.06x = 16,500.90 × 6,921.27
  4. Step 4: Simplify right side
    11,958.06x = 114,207,184.14
  5. Step 5: Solve for x
    x = 114,207,184.14/11,958.06
  6. Step 6: Final answer
    x = 9,550.64

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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.