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Finding the Fourth Proportional to 7,955.21, 11,923.02 and 3,272.30

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Solution

The fourth proportional to 7,955.21, 11,923.02 and 3,272.30 is: 4,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.21 : 11,923.02 = 3,272.30 : x
  2. Step 2: Convert to fraction form
    7,955.21/11,923.02 = 3,272.30/x
  3. Step 3: Cross multiply
    7,955.21x = 11,923.02 × 3,272.30
  4. Step 4: Simplify right side
    7,955.21x = 39,015,638.73
  5. Step 5: Solve for x
    x = 39,015,638.73/7,955.21
  6. Step 6: Final answer
    x = 4,904.42

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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.