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Finding the Fourth Proportional to 67,276.52, 92,861.70 and 38,994.92

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Solution

The fourth proportional to 67,276.52, 92,861.70 and 38,994.92 is: 53,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,276.52 : 92,861.70 = 38,994.92 : x
  2. Step 2: Convert to fraction form
    67,276.52/92,861.70 = 38,994.92/x
  3. Step 3: Cross multiply
    67,276.52x = 92,861.70 × 38,994.92
  4. Step 4: Simplify right side
    67,276.52x = 3,621,134,562.56
  5. Step 5: Solve for x
    x = 3,621,134,562.56/67,276.52
  6. Step 6: Final answer
    x = 53,824.64

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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.