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Finding the Fourth Proportional to 6,624.79, 9,933.84 and 4,161.38

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Solution

The fourth proportional to 6,624.79, 9,933.84 and 4,161.38 is: 6,239.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.79 : 9,933.84 = 4,161.38 : x
  2. Step 2: Convert to fraction form
    6,624.79/9,933.84 = 4,161.38/x
  3. Step 3: Cross multiply
    6,624.79x = 9,933.84 × 4,161.38
  4. Step 4: Simplify right side
    6,624.79x = 41,338,433.43
  5. Step 5: Solve for x
    x = 41,338,433.43/6,624.79
  6. Step 6: Final answer
    x = 6,239.96

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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.