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Finding the Fourth Proportional to 2,315.73, 3,473.67 and 672.36

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Solution

The fourth proportional to 2,315.73, 3,473.67 and 672.36 is: 1,008.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.73 : 3,473.67 = 672.36 : x
  2. Step 2: Convert to fraction form
    2,315.73/3,473.67 = 672.36/x
  3. Step 3: Cross multiply
    2,315.73x = 3,473.67 × 672.36
  4. Step 4: Simplify right side
    2,315.73x = 2,335,556.76
  5. Step 5: Solve for x
    x = 2,335,556.76/2,315.73
  6. Step 6: Final answer
    x = 1,008.56

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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.