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Finding the Fourth Proportional to 18,255.69, 25,186.67 and 14,892.69

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Solution

The fourth proportional to 18,255.69, 25,186.67 and 14,892.69 is: 20,546.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.69 : 25,186.67 = 14,892.69 : x
  2. Step 2: Convert to fraction form
    18,255.69/25,186.67 = 14,892.69/x
  3. Step 3: Cross multiply
    18,255.69x = 25,186.67 × 14,892.69
  4. Step 4: Simplify right side
    18,255.69x = 375,097,193.98
  5. Step 5: Solve for x
    x = 375,097,193.98/18,255.69
  6. Step 6: Final answer
    x = 20,546.86

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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.