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Finding the Fourth Proportional to 6,169.11, 8,516.15 and 3,933.99

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Solution

The fourth proportional to 6,169.11, 8,516.15 and 3,933.99 is: 5,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,169.11 : 8,516.15 = 3,933.99 : x
  2. Step 2: Convert to fraction form
    6,169.11/8,516.15 = 3,933.99/x
  3. Step 3: Cross multiply
    6,169.11x = 8,516.15 × 3,933.99
  4. Step 4: Simplify right side
    6,169.11x = 33,502,386.69
  5. Step 5: Solve for x
    x = 33,502,386.69/6,169.11
  6. Step 6: Final answer
    x = 5,430.67

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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.