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Finding the Fourth Proportional to 18,267.35, 27,401.02 and 7,171.07

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Solution

The fourth proportional to 18,267.35, 27,401.02 and 7,171.07 is: 10,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.35 : 27,401.02 = 7,171.07 : x
  2. Step 2: Convert to fraction form
    18,267.35/27,401.02 = 7,171.07/x
  3. Step 3: Cross multiply
    18,267.35x = 27,401.02 × 7,171.07
  4. Step 4: Simplify right side
    18,267.35x = 196,494,477.56
  5. Step 5: Solve for x
    x = 196,494,477.56/18,267.35
  6. Step 6: Final answer
    x = 10,756.60

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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.