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Finding the Fourth Proportional to 66,939.66, 92,373.66 and 36,724.32

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Solution

The fourth proportional to 66,939.66, 92,373.66 and 36,724.32 is: 50,677.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,939.66 : 92,373.66 = 36,724.32 : x
  2. Step 2: Convert to fraction form
    66,939.66/92,373.66 = 36,724.32/x
  3. Step 3: Cross multiply
    66,939.66x = 92,373.66 × 36,724.32
  4. Step 4: Simplify right side
    66,939.66x = 3,392,359,849.41
  5. Step 5: Solve for x
    x = 3,392,359,849.41/66,939.66
  6. Step 6: Final answer
    x = 50,677.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.