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Finding the Fourth Proportional to 66,904.56, 92,327.58 and 36,689.79

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Solution

The fourth proportional to 66,904.56, 92,327.58 and 36,689.79 is: 50,631.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,904.56 : 92,327.58 = 36,689.79 : x
  2. Step 2: Convert to fraction form
    66,904.56/92,327.58 = 36,689.79/x
  3. Step 3: Cross multiply
    66,904.56x = 92,327.58 × 36,689.79
  4. Step 4: Simplify right side
    66,904.56x = 3,387,479,521.41
  5. Step 5: Solve for x
    x = 3,387,479,521.41/66,904.56
  6. Step 6: Final answer
    x = 50,631.52

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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.