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Finding the Fourth Proportional to 67,392.28, 92,942.26 and 53,958.64

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Solution

The fourth proportional to 67,392.28, 92,942.26 and 53,958.64 is: 74,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,392.28 : 92,942.26 = 53,958.64 : x
  2. Step 2: Convert to fraction form
    67,392.28/92,942.26 = 53,958.64/x
  3. Step 3: Cross multiply
    67,392.28x = 92,942.26 × 53,958.64
  4. Step 4: Simplify right side
    67,392.28x = 5,015,037,948.13
  5. Step 5: Solve for x
    x = 5,015,037,948.13/67,392.28
  6. Step 6: Final answer
    x = 74,415.61

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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.