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Finding the Fourth Proportional to 7,472.66, 11,187.84 and 3,954.68

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Solution

The fourth proportional to 7,472.66, 11,187.84 and 3,954.68 is: 5,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.66 : 11,187.84 = 3,954.68 : x
  2. Step 2: Convert to fraction form
    7,472.66/11,187.84 = 3,954.68/x
  3. Step 3: Cross multiply
    7,472.66x = 11,187.84 × 3,954.68
  4. Step 4: Simplify right side
    7,472.66x = 44,244,327.09
  5. Step 5: Solve for x
    x = 44,244,327.09/7,472.66
  6. Step 6: Final answer
    x = 5,920.83

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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.