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Finding the Fourth Proportional to 18,354.12, 27,549.40 and 8,495.61

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Solution

The fourth proportional to 18,354.12, 27,549.40 and 8,495.61 is: 12,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.12 : 27,549.40 = 8,495.61 : x
  2. Step 2: Convert to fraction form
    18,354.12/27,549.40 = 8,495.61/x
  3. Step 3: Cross multiply
    18,354.12x = 27,549.40 × 8,495.61
  4. Step 4: Simplify right side
    18,354.12x = 234,048,958.13
  5. Step 5: Solve for x
    x = 234,048,958.13/18,354.12
  6. Step 6: Final answer
    x = 12,751.85

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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.