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Finding the Fourth Proportional to 2,252.82, 3,379.40 and 792.30

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Solution

The fourth proportional to 2,252.82, 3,379.40 and 792.30 is: 1,188.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.82 : 3,379.40 = 792.30 : x
  2. Step 2: Convert to fraction form
    2,252.82/3,379.40 = 792.30/x
  3. Step 3: Cross multiply
    2,252.82x = 3,379.40 × 792.30
  4. Step 4: Simplify right side
    2,252.82x = 2,677,481.72
  5. Step 5: Solve for x
    x = 2,677,481.72/2,252.82
  6. Step 6: Final answer
    x = 1,188.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.