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Finding the Fourth Proportional to 62,993.92, 86,931.62 and 34,699.61

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Solution

The fourth proportional to 62,993.92, 86,931.62 and 34,699.61 is: 47,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,993.92 : 86,931.62 = 34,699.61 : x
  2. Step 2: Convert to fraction form
    62,993.92/86,931.62 = 34,699.61/x
  3. Step 3: Cross multiply
    62,993.92x = 86,931.62 × 34,699.61
  4. Step 4: Simplify right side
    62,993.92x = 3,016,493,310.67
  5. Step 5: Solve for x
    x = 3,016,493,310.67/62,993.92
  6. Step 6: Final answer
    x = 47,885.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.