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Finding the Fourth Proportional to 18,401.54, 27,602.20 and 11,008.07

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Solution

The fourth proportional to 18,401.54, 27,602.20 and 11,008.07 is: 16,512.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.54 : 27,602.20 = 11,008.07 : x
  2. Step 2: Convert to fraction form
    18,401.54/27,602.20 = 11,008.07/x
  3. Step 3: Cross multiply
    18,401.54x = 27,602.20 × 11,008.07
  4. Step 4: Simplify right side
    18,401.54x = 303,846,756.70
  5. Step 5: Solve for x
    x = 303,846,756.70/18,401.54
  6. Step 6: Final answer
    x = 16,512.03

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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.