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Finding the Fourth Proportional to 67,686, 93,404.34 and 37,472.64

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Solution

The fourth proportional to 67,686, 93,404.34 and 37,472.64 is: 51,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,686 : 93,404.34 = 37,472.64 : x
  2. Step 2: Convert to fraction form
    67,686/93,404.34 = 37,472.64/x
  3. Step 3: Cross multiply
    67,686x = 93,404.34 × 37,472.64
  4. Step 4: Simplify right side
    67,686x = 3,500,107,207.26
  5. Step 5: Solve for x
    x = 3,500,107,207.26/67,686
  6. Step 6: Final answer
    x = 51,710.95

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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.