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Finding the Fourth Proportional to 18,324.67, 25,274.20 and 12,668.88

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Solution

The fourth proportional to 18,324.67, 25,274.20 and 12,668.88 is: 17,473.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.67 : 25,274.20 = 12,668.88 : x
  2. Step 2: Convert to fraction form
    18,324.67/25,274.20 = 12,668.88/x
  3. Step 3: Cross multiply
    18,324.67x = 25,274.20 × 12,668.88
  4. Step 4: Simplify right side
    18,324.67x = 320,195,858.30
  5. Step 5: Solve for x
    x = 320,195,858.30/18,324.67
  6. Step 6: Final answer
    x = 17,473.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.