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Finding the Fourth Proportional to 62,685.72, 93,940.20 and 34,618.41

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Solution

The fourth proportional to 62,685.72, 93,940.20 and 34,618.41 is: 51,878.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,685.72 : 93,940.20 = 34,618.41 : x
  2. Step 2: Convert to fraction form
    62,685.72/93,940.20 = 34,618.41/x
  3. Step 3: Cross multiply
    62,685.72x = 93,940.20 × 34,618.41
  4. Step 4: Simplify right side
    62,685.72x = 3,252,060,359.08
  5. Step 5: Solve for x
    x = 3,252,060,359.08/62,685.72
  6. Step 6: Final answer
    x = 51,878.81

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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.