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Finding the Fourth Proportional to 66,957.78, 92,398.61 and 36,742.34

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Solution

The fourth proportional to 66,957.78, 92,398.61 and 36,742.34 is: 50,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,957.78 : 92,398.61 = 36,742.34 : x
  2. Step 2: Convert to fraction form
    66,957.78/92,398.61 = 36,742.34/x
  3. Step 3: Cross multiply
    66,957.78x = 92,398.61 × 36,742.34
  4. Step 4: Simplify right side
    66,957.78x = 3,394,941,144.15
  5. Step 5: Solve for x
    x = 3,394,941,144.15/66,957.78
  6. Step 6: Final answer
    x = 50,702.71

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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.