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Finding the Fourth Proportional to 11,605.91, 17,398.11 and 4,208.38

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Solution

The fourth proportional to 11,605.91, 17,398.11 and 4,208.38 is: 6,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,605.91 : 17,398.11 = 4,208.38 : x
  2. Step 2: Convert to fraction form
    11,605.91/17,398.11 = 4,208.38/x
  3. Step 3: Cross multiply
    11,605.91x = 17,398.11 × 4,208.38
  4. Step 4: Simplify right side
    11,605.91x = 73,217,895.69
  5. Step 5: Solve for x
    x = 73,217,895.69/11,605.91
  6. Step 6: Final answer
    x = 6,308.67

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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.