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Finding the Fourth Proportional to 22,312.92, 30,793.77 and 12,243.31

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Solution

The fourth proportional to 22,312.92, 30,793.77 and 12,243.31 is: 16,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.92 : 30,793.77 = 12,243.31 : x
  2. Step 2: Convert to fraction form
    22,312.92/30,793.77 = 12,243.31/x
  3. Step 3: Cross multiply
    22,312.92x = 30,793.77 × 12,243.31
  4. Step 4: Simplify right side
    22,312.92x = 377,017,672.18
  5. Step 5: Solve for x
    x = 377,017,672.18/22,312.92
  6. Step 6: Final answer
    x = 16,896.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.