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Finding the Fourth Proportional to 21,793.80, 32,693.66 and 6,997.80

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Solution

The fourth proportional to 21,793.80, 32,693.66 and 6,997.80 is: 10,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,793.80 : 32,693.66 = 6,997.80 : x
  2. Step 2: Convert to fraction form
    21,793.80/32,693.66 = 6,997.80/x
  3. Step 3: Cross multiply
    21,793.80x = 32,693.66 × 6,997.80
  4. Step 4: Simplify right side
    21,793.80x = 228,783,693.95
  5. Step 5: Solve for x
    x = 228,783,693.95/21,793.80
  6. Step 6: Final answer
    x = 10,497.65

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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.