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Finding the Fourth Proportional to 18,753.46, 28,132.99 and 6,906.33

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Solution

The fourth proportional to 18,753.46, 28,132.99 and 6,906.33 is: 10,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.46 : 28,132.99 = 6,906.33 : x
  2. Step 2: Convert to fraction form
    18,753.46/28,132.99 = 6,906.33/x
  3. Step 3: Cross multiply
    18,753.46x = 28,132.99 × 6,906.33
  4. Step 4: Simplify right side
    18,753.46x = 194,295,572.16
  5. Step 5: Solve for x
    x = 194,295,572.16/18,753.46
  6. Step 6: Final answer
    x = 10,360.52

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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.