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Finding the Fourth Proportional to 18,313.15, 27,469.73 and 6,623.64

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Solution

The fourth proportional to 18,313.15, 27,469.73 and 6,623.64 is: 9,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.15 : 27,469.73 = 6,623.64 : x
  2. Step 2: Convert to fraction form
    18,313.15/27,469.73 = 6,623.64/x
  3. Step 3: Cross multiply
    18,313.15x = 27,469.73 × 6,623.64
  4. Step 4: Simplify right side
    18,313.15x = 181,949,431.95
  5. Step 5: Solve for x
    x = 181,949,431.95/18,313.15
  6. Step 6: Final answer
    x = 9,935.45

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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.