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Finding the Fourth Proportional to 6,908.56, 9,534.15 and 3,924.34

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Solution

The fourth proportional to 6,908.56, 9,534.15 and 3,924.34 is: 5,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,908.56 : 9,534.15 = 3,924.34 : x
  2. Step 2: Convert to fraction form
    6,908.56/9,534.15 = 3,924.34/x
  3. Step 3: Cross multiply
    6,908.56x = 9,534.15 × 3,924.34
  4. Step 4: Simplify right side
    6,908.56x = 37,415,246.21
  5. Step 5: Solve for x
    x = 37,415,246.21/6,908.56
  6. Step 6: Final answer
    x = 5,415.78

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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.