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Finding the Fourth Proportional to 67,865.92, 93,654.87 and 37,655.80

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Solution

The fourth proportional to 67,865.92, 93,654.87 and 37,655.80 is: 51,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,865.92 : 93,654.87 = 37,655.80 : x
  2. Step 2: Convert to fraction form
    67,865.92/93,654.87 = 37,655.80/x
  3. Step 3: Cross multiply
    67,865.92x = 93,654.87 × 37,655.80
  4. Step 4: Simplify right side
    67,865.92x = 3,526,649,053.75
  5. Step 5: Solve for x
    x = 3,526,649,053.75/67,865.92
  6. Step 6: Final answer
    x = 51,964.95

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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.