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Finding the Fourth Proportional to 2,312.64, 3,467.52 and 1,079.52

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Solution

The fourth proportional to 2,312.64, 3,467.52 and 1,079.52 is: 1,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.64 : 3,467.52 = 1,079.52 : x
  2. Step 2: Convert to fraction form
    2,312.64/3,467.52 = 1,079.52/x
  3. Step 3: Cross multiply
    2,312.64x = 3,467.52 × 1,079.52
  4. Step 4: Simplify right side
    2,312.64x = 3,743,257.19
  5. Step 5: Solve for x
    x = 3,743,257.19/2,312.64
  6. Step 6: Final answer
    x = 1,618.61

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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.