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Finding the Fourth Proportional to 13,892.91, 20,833.06 and 5,991.69

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Solution

The fourth proportional to 13,892.91, 20,833.06 and 5,991.69 is: 8,984.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.91 : 20,833.06 = 5,991.69 : x
  2. Step 2: Convert to fraction form
    13,892.91/20,833.06 = 5,991.69/x
  3. Step 3: Cross multiply
    13,892.91x = 20,833.06 × 5,991.69
  4. Step 4: Simplify right side
    13,892.91x = 124,825,222.29
  5. Step 5: Solve for x
    x = 124,825,222.29/13,892.91
  6. Step 6: Final answer
    x = 8,984.81

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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.