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Finding the Fourth Proportional to 2,252.64, 3,379.36 and 792.64

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Solution

The fourth proportional to 2,252.64, 3,379.36 and 792.64 is: 1,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.64 : 3,379.36 = 792.64 : x
  2. Step 2: Convert to fraction form
    2,252.64/3,379.36 = 792.64/x
  3. Step 3: Cross multiply
    2,252.64x = 3,379.36 × 792.64
  4. Step 4: Simplify right side
    2,252.64x = 2,678,615.91
  5. Step 5: Solve for x
    x = 2,678,615.91/2,252.64
  6. Step 6: Final answer
    x = 1,189.10

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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.