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Finding the Fourth Proportional to 48,505.70, 66,946.05 and 28,084.79

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Solution

The fourth proportional to 48,505.70, 66,946.05 and 28,084.79 is: 38,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,505.70 : 66,946.05 = 28,084.79 : x
  2. Step 2: Convert to fraction form
    48,505.70/66,946.05 = 28,084.79/x
  3. Step 3: Cross multiply
    48,505.70x = 66,946.05 × 28,084.79
  4. Step 4: Simplify right side
    48,505.70x = 1,880,165,420.85
  5. Step 5: Solve for x
    x = 1,880,165,420.85/48,505.70
  6. Step 6: Final answer
    x = 38,761.75

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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.