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Finding the Fourth Proportional to 11,807.67, 17,707.26 and 3,908.73

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Solution

The fourth proportional to 11,807.67, 17,707.26 and 3,908.73 is: 5,861.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,807.67 : 17,707.26 = 3,908.73 : x
  2. Step 2: Convert to fraction form
    11,807.67/17,707.26 = 3,908.73/x
  3. Step 3: Cross multiply
    11,807.67x = 17,707.26 × 3,908.73
  4. Step 4: Simplify right side
    11,807.67x = 69,212,898.38
  5. Step 5: Solve for x
    x = 69,212,898.38/11,807.67
  6. Step 6: Final answer
    x = 5,861.69

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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.