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Finding the Fourth Proportional to 67,711.21, 93,440.32 and 37,495.88

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Solution

The fourth proportional to 67,711.21, 93,440.32 and 37,495.88 is: 51,743.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,711.21 : 93,440.32 = 37,495.88 : x
  2. Step 2: Convert to fraction form
    67,711.21/93,440.32 = 37,495.88/x
  3. Step 3: Cross multiply
    67,711.21x = 93,440.32 × 37,495.88
  4. Step 4: Simplify right side
    67,711.21x = 3,503,627,025.88
  5. Step 5: Solve for x
    x = 3,503,627,025.88/67,711.21
  6. Step 6: Final answer
    x = 51,743.68

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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.