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Finding the Fourth Proportional to 11,958.41, 16,502.81 and 6,581.05

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Solution

The fourth proportional to 11,958.41, 16,502.81 and 6,581.05 is: 9,081.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958.41 : 16,502.81 = 6,581.05 : x
  2. Step 2: Convert to fraction form
    11,958.41/16,502.81 = 6,581.05/x
  3. Step 3: Cross multiply
    11,958.41x = 16,502.81 × 6,581.05
  4. Step 4: Simplify right side
    11,958.41x = 108,605,799.12
  5. Step 5: Solve for x
    x = 108,605,799.12/11,958.41
  6. Step 6: Final answer
    x = 9,081.96

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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.