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Finding the Fourth Proportional to 67,334.48, 92,912.84 and 38,655.39

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Solution

The fourth proportional to 67,334.48, 92,912.84 and 38,655.39 is: 53,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,334.48 : 92,912.84 = 38,655.39 : x
  2. Step 2: Convert to fraction form
    67,334.48/92,912.84 = 38,655.39/x
  3. Step 3: Cross multiply
    67,334.48x = 92,912.84 × 38,655.39
  4. Step 4: Simplify right side
    67,334.48x = 3,591,582,066.21
  5. Step 5: Solve for x
    x = 3,591,582,066.21/67,334.48
  6. Step 6: Final answer
    x = 53,339.42

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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.