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Finding the Fourth Proportional to 967.16, 1,333.41 and 789.93

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Solution

The fourth proportional to 967.16, 1,333.41 and 789.93 is: 1,089.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.16 : 1,333.41 = 789.93 : x
  2. Step 2: Convert to fraction form
    967.16/1,333.41 = 789.93/x
  3. Step 3: Cross multiply
    967.16x = 1,333.41 × 789.93
  4. Step 4: Simplify right side
    967.16x = 1,053,300.56
  5. Step 5: Solve for x
    x = 1,053,300.56/967.16
  6. Step 6: Final answer
    x = 1,089.07

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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.