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Finding the Fourth Proportional to 6,687.62, 9,227.54 and 3,703.26

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Solution

The fourth proportional to 6,687.62, 9,227.54 and 3,703.26 is: 5,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.62 : 9,227.54 = 3,703.26 : x
  2. Step 2: Convert to fraction form
    6,687.62/9,227.54 = 3,703.26/x
  3. Step 3: Cross multiply
    6,687.62x = 9,227.54 × 3,703.26
  4. Step 4: Simplify right side
    6,687.62x = 34,171,979.78
  5. Step 5: Solve for x
    x = 34,171,979.78/6,687.62
  6. Step 6: Final answer
    x = 5,109.74

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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.