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Finding the Fourth Proportional to 3,553.93, 5,330.89 and 956.86

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Solution

The fourth proportional to 3,553.93, 5,330.89 and 956.86 is: 1,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.93 : 5,330.89 = 956.86 : x
  2. Step 2: Convert to fraction form
    3,553.93/5,330.89 = 956.86/x
  3. Step 3: Cross multiply
    3,553.93x = 5,330.89 × 956.86
  4. Step 4: Simplify right side
    3,553.93x = 5,100,930.57
  5. Step 5: Solve for x
    x = 5,100,930.57/3,553.93
  6. Step 6: Final answer
    x = 1,435.29

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Similar ratio
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1.5x scale

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.