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Finding the Fourth Proportional to 18,161.70, 27,226.35 and 10,758.30

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Solution

The fourth proportional to 18,161.70, 27,226.35 and 10,758.30 is: 16,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.70 : 27,226.35 = 10,758.30 : x
  2. Step 2: Convert to fraction form
    18,161.70/27,226.35 = 10,758.30/x
  3. Step 3: Cross multiply
    18,161.70x = 27,226.35 × 10,758.30
  4. Step 4: Simplify right side
    18,161.70x = 292,909,241.21
  5. Step 5: Solve for x
    x = 292,909,241.21/18,161.70
  6. Step 6: Final answer
    x = 16,127.85

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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.