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Finding the Fourth Proportional to 67,878.05, 93,671.82 and 37,663.38

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Solution

The fourth proportional to 67,878.05, 93,671.82 and 37,663.38 is: 51,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,878.05 : 93,671.82 = 37,663.38 : x
  2. Step 2: Convert to fraction form
    67,878.05/93,671.82 = 37,663.38/x
  3. Step 3: Cross multiply
    67,878.05x = 93,671.82 × 37,663.38
  4. Step 4: Simplify right side
    67,878.05x = 3,527,997,351.95
  5. Step 5: Solve for x
    x = 3,527,997,351.95/67,878.05
  6. Step 6: Final answer
    x = 51,975.53

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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.