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Finding the Fourth Proportional to 67,912.21, 93,708.90 and 37,697.79

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Solution

The fourth proportional to 67,912.21, 93,708.90 and 37,697.79 is: 52,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,912.21 : 93,708.90 = 37,697.79 : x
  2. Step 2: Convert to fraction form
    67,912.21/93,708.90 = 37,697.79/x
  3. Step 3: Cross multiply
    67,912.21x = 93,708.90 × 37,697.79
  4. Step 4: Simplify right side
    67,912.21x = 3,532,618,433.33
  5. Step 5: Solve for x
    x = 3,532,618,433.33/67,912.21
  6. Step 6: Final answer
    x = 52,017.43

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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.