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Finding the Fourth Proportional to 3,553.90, 5,330.84 and 956.64

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Solution

The fourth proportional to 3,553.90, 5,330.84 and 956.64 is: 1,434.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.90 : 5,330.84 = 956.64 : x
  2. Step 2: Convert to fraction form
    3,553.90/5,330.84 = 956.64/x
  3. Step 3: Cross multiply
    3,553.90x = 5,330.84 × 956.64
  4. Step 4: Simplify right side
    3,553.90x = 5,099,694.78
  5. Step 5: Solve for x
    x = 5,099,694.78/3,553.90
  6. Step 6: Final answer
    x = 1,434.96

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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.