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Finding the Fourth Proportional to 18,321.97, 27,482.34 and 5,842.69

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Solution

The fourth proportional to 18,321.97, 27,482.34 and 5,842.69 is: 8,763.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.97 : 27,482.34 = 5,842.69 : x
  2. Step 2: Convert to fraction form
    18,321.97/27,482.34 = 5,842.69/x
  3. Step 3: Cross multiply
    18,321.97x = 27,482.34 × 5,842.69
  4. Step 4: Simplify right side
    18,321.97x = 160,570,793.09
  5. Step 5: Solve for x
    x = 160,570,793.09/18,321.97
  6. Step 6: Final answer
    x = 8,763.84

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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.