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Finding the Fourth Proportional to 10,793.40, 16,170.90 and 9,257.40

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Solution

The fourth proportional to 10,793.40, 16,170.90 and 9,257.40 is: 13,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,793.40 : 16,170.90 = 9,257.40 : x
  2. Step 2: Convert to fraction form
    10,793.40/16,170.90 = 9,257.40/x
  3. Step 3: Cross multiply
    10,793.40x = 16,170.90 × 9,257.40
  4. Step 4: Simplify right side
    10,793.40x = 149,700,489.66
  5. Step 5: Solve for x
    x = 149,700,489.66/10,793.40
  6. Step 6: Final answer
    x = 13,869.63

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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.