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Finding the Fourth Proportional to 18,166.80, 27,250.20 and 8,325.30

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Solution

The fourth proportional to 18,166.80, 27,250.20 and 8,325.30 is: 12,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,166.80 : 27,250.20 = 8,325.30 : x
  2. Step 2: Convert to fraction form
    18,166.80/27,250.20 = 8,325.30/x
  3. Step 3: Cross multiply
    18,166.80x = 27,250.20 × 8,325.30
  4. Step 4: Simplify right side
    18,166.80x = 226,866,090.06
  5. Step 5: Solve for x
    x = 226,866,090.06/18,166.80
  6. Step 6: Final answer
    x = 12,487.95

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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.