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Finding the Fourth Proportional to 18,025.01, 24,872.39 and 9,958.20

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Solution

The fourth proportional to 18,025.01, 24,872.39 and 9,958.20 is: 13,741.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,025.01 : 24,872.39 = 9,958.20 : x
  2. Step 2: Convert to fraction form
    18,025.01/24,872.39 = 9,958.20/x
  3. Step 3: Cross multiply
    18,025.01x = 24,872.39 × 9,958.20
  4. Step 4: Simplify right side
    18,025.01x = 247,684,234.10
  5. Step 5: Solve for x
    x = 247,684,234.10/18,025.01
  6. Step 6: Final answer
    x = 13,741.14

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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.