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Finding the Fourth Proportional to 21,793.98, 32,660.72 and 11,384.94

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Solution

The fourth proportional to 21,793.98, 32,660.72 and 11,384.94 is: 17,061.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,793.98 : 32,660.72 = 11,384.94 : x
  2. Step 2: Convert to fraction form
    21,793.98/32,660.72 = 11,384.94/x
  3. Step 3: Cross multiply
    21,793.98x = 32,660.72 × 11,384.94
  4. Step 4: Simplify right side
    21,793.98x = 371,840,337.56
  5. Step 5: Solve for x
    x = 371,840,337.56/21,793.98
  6. Step 6: Final answer
    x = 17,061.61

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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.