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Finding the Fourth Proportional to 48,755.62, 67,289.93 and 28,623.60

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Solution

The fourth proportional to 48,755.62, 67,289.93 and 28,623.60 is: 39,504.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,755.62 : 67,289.93 = 28,623.60 : x
  2. Step 2: Convert to fraction form
    48,755.62/67,289.93 = 28,623.60/x
  3. Step 3: Cross multiply
    48,755.62x = 67,289.93 × 28,623.60
  4. Step 4: Simplify right side
    48,755.62x = 1,926,080,040.35
  5. Step 5: Solve for x
    x = 1,926,080,040.35/48,755.62
  6. Step 6: Final answer
    x = 39,504.78

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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.