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Finding the Fourth Proportional to 18,552.84, 27,809.87 and 9,186.99

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Solution

The fourth proportional to 18,552.84, 27,809.87 and 9,186.99 is: 13,770.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,552.84 : 27,809.87 = 9,186.99 : x
  2. Step 2: Convert to fraction form
    18,552.84/27,809.87 = 9,186.99/x
  3. Step 3: Cross multiply
    18,552.84x = 27,809.87 × 9,186.99
  4. Step 4: Simplify right side
    18,552.84x = 255,488,951.66
  5. Step 5: Solve for x
    x = 255,488,951.66/18,552.84
  6. Step 6: Final answer
    x = 13,770.88

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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.