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Finding the Fourth Proportional to 6,229.80, 8,572.80 and 6,191.46

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Solution

The fourth proportional to 6,229.80, 8,572.80 and 6,191.46 is: 8,520.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,229.80 : 8,572.80 = 6,191.46 : x
  2. Step 2: Convert to fraction form
    6,229.80/8,572.80 = 6,191.46/x
  3. Step 3: Cross multiply
    6,229.80x = 8,572.80 × 6,191.46
  4. Step 4: Simplify right side
    6,229.80x = 53,078,148.29
  5. Step 5: Solve for x
    x = 53,078,148.29/6,229.80
  6. Step 6: Final answer
    x = 8,520.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.