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Finding the Fourth Proportional to 18,321.75, 27,482.90 and 6,009.75

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Solution

The fourth proportional to 18,321.75, 27,482.90 and 6,009.75 is: 9,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.75 : 27,482.90 = 6,009.75 : x
  2. Step 2: Convert to fraction form
    18,321.75/27,482.90 = 6,009.75/x
  3. Step 3: Cross multiply
    18,321.75x = 27,482.90 × 6,009.75
  4. Step 4: Simplify right side
    18,321.75x = 165,165,328.23
  5. Step 5: Solve for x
    x = 165,165,328.23/18,321.75
  6. Step 6: Final answer
    x = 9,014.71

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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.