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Finding the Fourth Proportional to 68,989.92, 95,204.80 and 38,364.88

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Solution

The fourth proportional to 68,989.92, 95,204.80 and 38,364.88 is: 52,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989.92 : 95,204.80 = 38,364.88 : x
  2. Step 2: Convert to fraction form
    68,989.92/95,204.80 = 38,364.88/x
  3. Step 3: Cross multiply
    68,989.92x = 95,204.80 × 38,364.88
  4. Step 4: Simplify right side
    68,989.92x = 3,652,520,727.42
  5. Step 5: Solve for x
    x = 3,652,520,727.42/68,989.92
  6. Step 6: Final answer
    x = 52,942.82

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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.