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Finding the Fourth Proportional to 18,427.85, 27,633.87 and 8,566.10

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Solution

The fourth proportional to 18,427.85, 27,633.87 and 8,566.10 is: 12,845.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.85 : 27,633.87 = 8,566.10 : x
  2. Step 2: Convert to fraction form
    18,427.85/27,633.87 = 8,566.10/x
  3. Step 3: Cross multiply
    18,427.85x = 27,633.87 × 8,566.10
  4. Step 4: Simplify right side
    18,427.85x = 236,714,355.64
  5. Step 5: Solve for x
    x = 236,714,355.64/18,427.85
  6. Step 6: Final answer
    x = 12,845.47

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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.