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Finding the Fourth Proportional to 6,289.68, 8,679.99 and 3,770.94

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Solution

The fourth proportional to 6,289.68, 8,679.99 and 3,770.94 is: 5,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.68 : 8,679.99 = 3,770.94 : x
  2. Step 2: Convert to fraction form
    6,289.68/8,679.99 = 3,770.94/x
  3. Step 3: Cross multiply
    6,289.68x = 8,679.99 × 3,770.94
  4. Step 4: Simplify right side
    6,289.68x = 32,731,721.49
  5. Step 5: Solve for x
    x = 32,731,721.49/6,289.68
  6. Step 6: Final answer
    x = 5,204.04

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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.