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Finding the Fourth Proportional to 967.42, 1,451.43 and 675.61

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Solution

The fourth proportional to 967.42, 1,451.43 and 675.61 is: 1,013.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.42 : 1,451.43 = 675.61 : x
  2. Step 2: Convert to fraction form
    967.42/1,451.43 = 675.61/x
  3. Step 3: Cross multiply
    967.42x = 1,451.43 × 675.61
  4. Step 4: Simplify right side
    967.42x = 980,600.62
  5. Step 5: Solve for x
    x = 980,600.62/967.42
  6. Step 6: Final answer
    x = 1,013.62

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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.