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Finding the Fourth Proportional to 64,507.92, 96,772.83 and 20,133.69

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Solution

The fourth proportional to 64,507.92, 96,772.83 and 20,133.69 is: 30,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,507.92 : 96,772.83 = 20,133.69 : x
  2. Step 2: Convert to fraction form
    64,507.92/96,772.83 = 20,133.69/x
  3. Step 3: Cross multiply
    64,507.92x = 96,772.83 × 20,133.69
  4. Step 4: Simplify right side
    64,507.92x = 1,948,394,159.64
  5. Step 5: Solve for x
    x = 1,948,394,159.64/64,507.92
  6. Step 6: Final answer
    x = 30,203.95

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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.