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Finding the Fourth Proportional to 18,616.92, 27,918.09 and 6,923.76

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Solution

The fourth proportional to 18,616.92, 27,918.09 and 6,923.76 is: 10,382.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.92 : 27,918.09 = 6,923.76 : x
  2. Step 2: Convert to fraction form
    18,616.92/27,918.09 = 6,923.76/x
  3. Step 3: Cross multiply
    18,616.92x = 27,918.09 × 6,923.76
  4. Step 4: Simplify right side
    18,616.92x = 193,298,154.82
  5. Step 5: Solve for x
    x = 193,298,154.82/18,616.92
  6. Step 6: Final answer
    x = 10,382.93

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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.