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Finding the Fourth Proportional to 1,073.14, 1,481.33 and 962.42

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Solution

The fourth proportional to 1,073.14, 1,481.33 and 962.42 is: 1,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.14 : 1,481.33 = 962.42 : x
  2. Step 2: Convert to fraction form
    1,073.14/1,481.33 = 962.42/x
  3. Step 3: Cross multiply
    1,073.14x = 1,481.33 × 962.42
  4. Step 4: Simplify right side
    1,073.14x = 1,425,661.62
  5. Step 5: Solve for x
    x = 1,425,661.62/1,073.14
  6. Step 6: Final answer
    x = 1,328.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.