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Finding the Fourth Proportional to 967.75, 1,452.98 and 923.72

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Solution

The fourth proportional to 967.75, 1,452.98 and 923.72 is: 1,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.75 : 1,452.98 = 923.72 : x
  2. Step 2: Convert to fraction form
    967.75/1,452.98 = 923.72/x
  3. Step 3: Cross multiply
    967.75x = 1,452.98 × 923.72
  4. Step 4: Simplify right side
    967.75x = 1,342,141.73
  5. Step 5: Solve for x
    x = 1,342,141.73/967.75
  6. Step 6: Final answer
    x = 1,386.87

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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.