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Finding the Fourth Proportional to 18,188.29, 27,282.44 and 5,709.27

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Solution

The fourth proportional to 18,188.29, 27,282.44 and 5,709.27 is: 8,563.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.29 : 27,282.44 = 5,709.27 : x
  2. Step 2: Convert to fraction form
    18,188.29/27,282.44 = 5,709.27/x
  3. Step 3: Cross multiply
    18,188.29x = 27,282.44 × 5,709.27
  4. Step 4: Simplify right side
    18,188.29x = 155,762,816.22
  5. Step 5: Solve for x
    x = 155,762,816.22/18,188.29
  6. Step 6: Final answer
    x = 8,563.91

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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.