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Finding the Fourth Proportional to 3,255, 4,882.26 and 1,063.68

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Solution

The fourth proportional to 3,255, 4,882.26 and 1,063.68 is: 1,595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255 : 4,882.26 = 1,063.68 : x
  2. Step 2: Convert to fraction form
    3,255/4,882.26 = 1,063.68/x
  3. Step 3: Cross multiply
    3,255x = 4,882.26 × 1,063.68
  4. Step 4: Simplify right side
    3,255x = 5,193,162.32
  5. Step 5: Solve for x
    x = 5,193,162.32/3,255
  6. Step 6: Final answer
    x = 1,595.44

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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.