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Finding the Fourth Proportional to 3,073.62, 4,609.71 and 882.66

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Solution

The fourth proportional to 3,073.62, 4,609.71 and 882.66 is: 1,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,073.62 : 4,609.71 = 882.66 : x
  2. Step 2: Convert to fraction form
    3,073.62/4,609.71 = 882.66/x
  3. Step 3: Cross multiply
    3,073.62x = 4,609.71 × 882.66
  4. Step 4: Simplify right side
    3,073.62x = 4,068,806.63
  5. Step 5: Solve for x
    x = 4,068,806.63/3,073.62
  6. Step 6: Final answer
    x = 1,323.78

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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.