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Finding the Fourth Proportional to 66,864.12, 92,270.04 and 36,648.60

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Solution

The fourth proportional to 66,864.12, 92,270.04 and 36,648.60 is: 50,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864.12 : 92,270.04 = 36,648.60 : x
  2. Step 2: Convert to fraction form
    66,864.12/92,270.04 = 36,648.60/x
  3. Step 3: Cross multiply
    66,864.12x = 92,270.04 × 36,648.60
  4. Step 4: Simplify right side
    66,864.12x = 3,381,567,787.94
  5. Step 5: Solve for x
    x = 3,381,567,787.94/66,864.12
  6. Step 6: Final answer
    x = 50,573.73

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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.