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Finding the Fourth Proportional to 66,856.42, 92,262.94 and 36,644.64

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Solution

The fourth proportional to 66,856.42, 92,262.94 and 36,644.64 is: 50,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856.42 : 92,262.94 = 36,644.64 : x
  2. Step 2: Convert to fraction form
    66,856.42/92,262.94 = 36,644.64/x
  3. Step 3: Cross multiply
    66,856.42x = 92,262.94 × 36,644.64
  4. Step 4: Simplify right side
    66,856.42x = 3,380,942,221.64
  5. Step 5: Solve for x
    x = 3,380,942,221.64/66,856.42
  6. Step 6: Final answer
    x = 50,570.20

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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.