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Finding the Fourth Proportional to 67,889.88, 93,685.50 and 38,079.96

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Solution

The fourth proportional to 67,889.88, 93,685.50 and 38,079.96 is: 52,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,889.88 : 93,685.50 = 38,079.96 : x
  2. Step 2: Convert to fraction form
    67,889.88/93,685.50 = 38,079.96/x
  3. Step 3: Cross multiply
    67,889.88x = 93,685.50 × 38,079.96
  4. Step 4: Simplify right side
    67,889.88x = 3,567,540,092.58
  5. Step 5: Solve for x
    x = 3,567,540,092.58/67,889.88
  6. Step 6: Final answer
    x = 52,548.92

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1.5x scale

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.