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Finding the Fourth Proportional to 48,808.40, 73,241.40 and 17,639.60

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Solution

The fourth proportional to 48,808.40, 73,241.40 and 17,639.60 is: 26,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,808.40 : 73,241.40 = 17,639.60 : x
  2. Step 2: Convert to fraction form
    48,808.40/73,241.40 = 17,639.60/x
  3. Step 3: Cross multiply
    48,808.40x = 73,241.40 × 17,639.60
  4. Step 4: Simplify right side
    48,808.40x = 1,291,948,999.44
  5. Step 5: Solve for x
    x = 1,291,948,999.44/48,808.40
  6. Step 6: Final answer
    x = 26,469.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.