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Finding the Fourth Proportional to 18,476.87, 27,722.19 and 11,086.63

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Solution

The fourth proportional to 18,476.87, 27,722.19 and 11,086.63 is: 16,634.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.87 : 27,722.19 = 11,086.63 : x
  2. Step 2: Convert to fraction form
    18,476.87/27,722.19 = 11,086.63/x
  3. Step 3: Cross multiply
    18,476.87x = 27,722.19 × 11,086.63
  4. Step 4: Simplify right side
    18,476.87x = 307,345,635.60
  5. Step 5: Solve for x
    x = 307,345,635.60/18,476.87
  6. Step 6: Final answer
    x = 16,634.08

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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.