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Finding the Fourth Proportional to 64,410.20, 96,663.30 and 33,229.40

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Solution

The fourth proportional to 64,410.20, 96,663.30 and 33,229.40 is: 49,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,410.20 : 96,663.30 = 33,229.40 : x
  2. Step 2: Convert to fraction form
    64,410.20/96,663.30 = 33,229.40/x
  3. Step 3: Cross multiply
    64,410.20x = 96,663.30 × 33,229.40
  4. Step 4: Simplify right side
    64,410.20x = 3,212,063,461.02
  5. Step 5: Solve for x
    x = 3,212,063,461.02/64,410.20
  6. Step 6: Final answer
    x = 49,868.86

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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.