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Finding the Fourth Proportional to 6,724.62, 9,279.54 and 3,740.34

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Solution

The fourth proportional to 6,724.62, 9,279.54 and 3,740.34 is: 5,161.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,724.62 : 9,279.54 = 3,740.34 : x
  2. Step 2: Convert to fraction form
    6,724.62/9,279.54 = 3,740.34/x
  3. Step 3: Cross multiply
    6,724.62x = 9,279.54 × 3,740.34
  4. Step 4: Simplify right side
    6,724.62x = 34,708,669.44
  5. Step 5: Solve for x
    x = 34,708,669.44/6,724.62
  6. Step 6: Final answer
    x = 5,161.43

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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.