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Finding the Fourth Proportional to 67,644.69, 93,387.24 and 40,794

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Solution

The fourth proportional to 67,644.69, 93,387.24 and 40,794 is: 56,318.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,644.69 : 93,387.24 = 40,794 : x
  2. Step 2: Convert to fraction form
    67,644.69/93,387.24 = 40,794/x
  3. Step 3: Cross multiply
    67,644.69x = 93,387.24 × 40,794
  4. Step 4: Simplify right side
    67,644.69x = 3,809,639,068.56
  5. Step 5: Solve for x
    x = 3,809,639,068.56/67,644.69
  6. Step 6: Final answer
    x = 56,318.38

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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.