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Finding the Fourth Proportional to 64,407.92, 96,639.68 and 34,846.56

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Solution

The fourth proportional to 64,407.92, 96,639.68 and 34,846.56 is: 52,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,407.92 : 96,639.68 = 34,846.56 : x
  2. Step 2: Convert to fraction form
    64,407.92/96,639.68 = 34,846.56/x
  3. Step 3: Cross multiply
    64,407.92x = 96,639.68 × 34,846.56
  4. Step 4: Simplify right side
    64,407.92x = 3,367,560,494.62
  5. Step 5: Solve for x
    x = 3,367,560,494.62/64,407.92
  6. Step 6: Final answer
    x = 52,284.89

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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.