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Finding the Fourth Proportional to 6,903.69, 9,527.12 and 3,759.87

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Solution

The fourth proportional to 6,903.69, 9,527.12 and 3,759.87 is: 5,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,903.69 : 9,527.12 = 3,759.87 : x
  2. Step 2: Convert to fraction form
    6,903.69/9,527.12 = 3,759.87/x
  3. Step 3: Cross multiply
    6,903.69x = 9,527.12 × 3,759.87
  4. Step 4: Simplify right side
    6,903.69x = 35,820,713.88
  5. Step 5: Solve for x
    x = 35,820,713.88/6,903.69
  6. Step 6: Final answer
    x = 5,188.63

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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.