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Finding the Fourth Proportional to 21,751.28, 32,629.08 and 6,956.48

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Solution

The fourth proportional to 21,751.28, 32,629.08 and 6,956.48 is: 10,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.28 : 32,629.08 = 6,956.48 : x
  2. Step 2: Convert to fraction form
    21,751.28/32,629.08 = 6,956.48/x
  3. Step 3: Cross multiply
    21,751.28x = 32,629.08 × 6,956.48
  4. Step 4: Simplify right side
    21,751.28x = 226,983,542.44
  5. Step 5: Solve for x
    x = 226,983,542.44/21,751.28
  6. Step 6: Final answer
    x = 10,435.41

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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.