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Finding the Fourth Proportional to 18,549.90, 27,824.94 and 5,402.34

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Solution

The fourth proportional to 18,549.90, 27,824.94 and 5,402.34 is: 8,103.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.90 : 27,824.94 = 5,402.34 : x
  2. Step 2: Convert to fraction form
    18,549.90/27,824.94 = 5,402.34/x
  3. Step 3: Cross multiply
    18,549.90x = 27,824.94 × 5,402.34
  4. Step 4: Simplify right side
    18,549.90x = 150,319,786.36
  5. Step 5: Solve for x
    x = 150,319,786.36/18,549.90
  6. Step 6: Final answer
    x = 8,103.54

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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.