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Finding the Fourth Proportional to 7,207.76, 10,811.70 and 6,230.96

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Solution

The fourth proportional to 7,207.76, 10,811.70 and 6,230.96 is: 9,346.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.76 : 10,811.70 = 6,230.96 : x
  2. Step 2: Convert to fraction form
    7,207.76/10,811.70 = 6,230.96/x
  3. Step 3: Cross multiply
    7,207.76x = 10,811.70 × 6,230.96
  4. Step 4: Simplify right side
    7,207.76x = 67,367,270.23
  5. Step 5: Solve for x
    x = 67,367,270.23/7,207.76
  6. Step 6: Final answer
    x = 9,346.49

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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.