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Finding the Fourth Proportional to 18,234.60, 25,163.08 and 10,276.60

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Solution

The fourth proportional to 18,234.60, 25,163.08 and 10,276.60 is: 14,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.60 : 25,163.08 = 10,276.60 : x
  2. Step 2: Convert to fraction form
    18,234.60/25,163.08 = 10,276.60/x
  3. Step 3: Cross multiply
    18,234.60x = 25,163.08 × 10,276.60
  4. Step 4: Simplify right side
    18,234.60x = 258,590,907.93
  5. Step 5: Solve for x
    x = 258,590,907.93/18,234.60
  6. Step 6: Final answer
    x = 14,181.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.