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Finding the Fourth Proportional to 18,331.92, 27,497.84 and 4,480.92

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Solution

The fourth proportional to 18,331.92, 27,497.84 and 4,480.92 is: 6,721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.92 : 27,497.84 = 4,480.92 : x
  2. Step 2: Convert to fraction form
    18,331.92/27,497.84 = 4,480.92/x
  3. Step 3: Cross multiply
    18,331.92x = 27,497.84 × 4,480.92
  4. Step 4: Simplify right side
    18,331.92x = 123,215,598.81
  5. Step 5: Solve for x
    x = 123,215,598.81/18,331.92
  6. Step 6: Final answer
    x = 6,721.37

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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.