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Finding the Fourth Proportional to 3,392.92, 4,674.12 and 3,226.15

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Solution

The fourth proportional to 3,392.92, 4,674.12 and 3,226.15 is: 4,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.92 : 4,674.12 = 3,226.15 : x
  2. Step 2: Convert to fraction form
    3,392.92/4,674.12 = 3,226.15/x
  3. Step 3: Cross multiply
    3,392.92x = 4,674.12 × 3,226.15
  4. Step 4: Simplify right side
    3,392.92x = 15,079,412.24
  5. Step 5: Solve for x
    x = 15,079,412.24/3,392.92
  6. Step 6: Final answer
    x = 4,444.38

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Half scale
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Double scale
Find fourth proportional to 3,393.92, 4,675.50 and 3,227.15
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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.