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Finding the Fourth Proportional to 22,521.92, 33,783.24 and 6,939.50

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Solution

The fourth proportional to 22,521.92, 33,783.24 and 6,939.50 is: 10,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,521.92 : 33,783.24 = 6,939.50 : x
  2. Step 2: Convert to fraction form
    22,521.92/33,783.24 = 6,939.50/x
  3. Step 3: Cross multiply
    22,521.92x = 33,783.24 × 6,939.50
  4. Step 4: Simplify right side
    22,521.92x = 234,438,793.98
  5. Step 5: Solve for x
    x = 234,438,793.98/22,521.92
  6. Step 6: Final answer
    x = 10,409.36

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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.