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Finding the Fourth Proportional to 18,321.96, 27,486.18 and 5,844.72

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Solution

The fourth proportional to 18,321.96, 27,486.18 and 5,844.72 is: 8,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.96 : 27,486.18 = 5,844.72 : x
  2. Step 2: Convert to fraction form
    18,321.96/27,486.18 = 5,844.72/x
  3. Step 3: Cross multiply
    18,321.96x = 27,486.18 × 5,844.72
  4. Step 4: Simplify right side
    18,321.96x = 160,649,025.97
  5. Step 5: Solve for x
    x = 160,649,025.97/18,321.96
  6. Step 6: Final answer
    x = 8,768.11

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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.