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Finding the Fourth Proportional to 67,871.90, 93,668.36 and 37,662.94

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Solution

The fourth proportional to 67,871.90, 93,668.36 and 37,662.94 is: 51,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,871.90 : 93,668.36 = 37,662.94 : x
  2. Step 2: Convert to fraction form
    67,871.90/93,668.36 = 37,662.94/x
  3. Step 3: Cross multiply
    67,871.90x = 93,668.36 × 37,662.94
  4. Step 4: Simplify right side
    67,871.90x = 3,527,825,682.56
  5. Step 5: Solve for x
    x = 3,527,825,682.56/67,871.90
  6. Step 6: Final answer
    x = 51,977.70

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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.