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Finding the Fourth Proportional to 18,617.38, 25,694.01 and 10,662.22

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Solution

The fourth proportional to 18,617.38, 25,694.01 and 10,662.22 is: 14,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.38 : 25,694.01 = 10,662.22 : x
  2. Step 2: Convert to fraction form
    18,617.38/25,694.01 = 10,662.22/x
  3. Step 3: Cross multiply
    18,617.38x = 25,694.01 × 10,662.22
  4. Step 4: Simplify right side
    18,617.38x = 273,955,187.30
  5. Step 5: Solve for x
    x = 273,955,187.30/18,617.38
  6. Step 6: Final answer
    x = 14,715.02

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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.