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Finding the Fourth Proportional to 18,154.63, 27,193.67 and 8,302.20

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Solution

The fourth proportional to 18,154.63, 27,193.67 and 8,302.20 is: 12,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.63 : 27,193.67 = 8,302.20 : x
  2. Step 2: Convert to fraction form
    18,154.63/27,193.67 = 8,302.20/x
  3. Step 3: Cross multiply
    18,154.63x = 27,193.67 × 8,302.20
  4. Step 4: Simplify right side
    18,154.63x = 225,767,221.42
  5. Step 5: Solve for x
    x = 225,767,221.42/18,154.63
  6. Step 6: Final answer
    x = 12,435.79

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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.