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Finding the Fourth Proportional to 48,908.74, 67,494.34 and 28,766.47

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Solution

The fourth proportional to 48,908.74, 67,494.34 and 28,766.47 is: 39,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,908.74 : 67,494.34 = 28,766.47 : x
  2. Step 2: Convert to fraction form
    48,908.74/67,494.34 = 28,766.47/x
  3. Step 3: Cross multiply
    48,908.74x = 67,494.34 × 28,766.47
  4. Step 4: Simplify right side
    48,908.74x = 1,941,573,906.78
  5. Step 5: Solve for x
    x = 1,941,573,906.78/48,908.74
  6. Step 6: Final answer
    x = 39,697.89

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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.