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Finding the Fourth Proportional to 18,793.08, 28,192.86 and 6,314.31

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Solution

The fourth proportional to 18,793.08, 28,192.86 and 6,314.31 is: 9,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.08 : 28,192.86 = 6,314.31 : x
  2. Step 2: Convert to fraction form
    18,793.08/28,192.86 = 6,314.31/x
  3. Step 3: Cross multiply
    18,793.08x = 28,192.86 × 6,314.31
  4. Step 4: Simplify right side
    18,793.08x = 178,018,457.83
  5. Step 5: Solve for x
    x = 178,018,457.83/18,793.08
  6. Step 6: Final answer
    x = 9,472.55

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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.