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Finding the Fourth Proportional to 2,253.51, 3,380.26 and 955.89

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Solution

The fourth proportional to 2,253.51, 3,380.26 and 955.89 is: 1,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.51 : 3,380.26 = 955.89 : x
  2. Step 2: Convert to fraction form
    2,253.51/3,380.26 = 955.89/x
  3. Step 3: Cross multiply
    2,253.51x = 3,380.26 × 955.89
  4. Step 4: Simplify right side
    2,253.51x = 3,231,156.73
  5. Step 5: Solve for x
    x = 3,231,156.73/2,253.51
  6. Step 6: Final answer
    x = 1,433.83

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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.