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Finding the Fourth Proportional to 18,313.26, 27,469.90 and 6,623.76

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Solution

The fourth proportional to 18,313.26, 27,469.90 and 6,623.76 is: 9,935.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.26 : 27,469.90 = 6,623.76 : x
  2. Step 2: Convert to fraction form
    18,313.26/27,469.90 = 6,623.76/x
  3. Step 3: Cross multiply
    18,313.26x = 27,469.90 × 6,623.76
  4. Step 4: Simplify right side
    18,313.26x = 181,954,024.82
  5. Step 5: Solve for x
    x = 181,954,024.82/18,313.26
  6. Step 6: Final answer
    x = 9,935.64

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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.