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Finding the Fourth Proportional to 21,495.92, 32,230.56 and 7,452.64

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Solution

The fourth proportional to 21,495.92, 32,230.56 and 7,452.64 is: 11,174.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.92 : 32,230.56 = 7,452.64 : x
  2. Step 2: Convert to fraction form
    21,495.92/32,230.56 = 7,452.64/x
  3. Step 3: Cross multiply
    21,495.92x = 32,230.56 × 7,452.64
  4. Step 4: Simplify right side
    21,495.92x = 240,202,760.68
  5. Step 5: Solve for x
    x = 240,202,760.68/21,495.92
  6. Step 6: Final answer
    x = 11,174.34

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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.