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Finding the Fourth Proportional to 67,265.88, 92,826.93 and 38,987.97

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Solution

The fourth proportional to 67,265.88, 92,826.93 and 38,987.97 is: 53,803.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,265.88 : 92,826.93 = 38,987.97 : x
  2. Step 2: Convert to fraction form
    67,265.88/92,826.93 = 38,987.97/x
  3. Step 3: Cross multiply
    67,265.88x = 92,826.93 × 38,987.97
  4. Step 4: Simplify right side
    67,265.88x = 3,619,133,562.03
  5. Step 5: Solve for x
    x = 3,619,133,562.03/67,265.88
  6. Step 6: Final answer
    x = 53,803.41

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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.