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Finding the Fourth Proportional to 48,361.62, 66,739.08 and 27,140.90

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Solution

The fourth proportional to 48,361.62, 66,739.08 and 27,140.90 is: 37,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,361.62 : 66,739.08 = 27,140.90 : x
  2. Step 2: Convert to fraction form
    48,361.62/66,739.08 = 27,140.90/x
  3. Step 3: Cross multiply
    48,361.62x = 66,739.08 × 27,140.90
  4. Step 4: Simplify right side
    48,361.62x = 1,811,358,696.37
  5. Step 5: Solve for x
    x = 1,811,358,696.37/48,361.62
  6. Step 6: Final answer
    x = 37,454.47

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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.