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Finding the Fourth Proportional to 18,416.76, 27,628.92 and 5,938.44

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Solution

The fourth proportional to 18,416.76, 27,628.92 and 5,938.44 is: 8,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,416.76 : 27,628.92 = 5,938.44 : x
  2. Step 2: Convert to fraction form
    18,416.76/27,628.92 = 5,938.44/x
  3. Step 3: Cross multiply
    18,416.76x = 27,628.92 × 5,938.44
  4. Step 4: Simplify right side
    18,416.76x = 164,072,683.68
  5. Step 5: Solve for x
    x = 164,072,683.68/18,416.76
  6. Step 6: Final answer
    x = 8,908.88

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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.