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Finding the Fourth Proportional to 66,161.68, 99,253.54 and 30,658.56

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Solution

The fourth proportional to 66,161.68, 99,253.54 and 30,658.56 is: 45,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,161.68 : 99,253.54 = 30,658.56 : x
  2. Step 2: Convert to fraction form
    66,161.68/99,253.54 = 30,658.56/x
  3. Step 3: Cross multiply
    66,161.68x = 99,253.54 × 30,658.56
  4. Step 4: Simplify right side
    66,161.68x = 3,042,970,611.30
  5. Step 5: Solve for x
    x = 3,042,970,611.30/66,161.68
  6. Step 6: Final answer
    x = 45,992.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.