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Finding the Fourth Proportional to 49,808.52, 68,736.60 and 28,587.60

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Solution

The fourth proportional to 49,808.52, 68,736.60 and 28,587.60 is: 39,451.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,808.52 : 68,736.60 = 28,587.60 : x
  2. Step 2: Convert to fraction form
    49,808.52/68,736.60 = 28,587.60/x
  3. Step 3: Cross multiply
    49,808.52x = 68,736.60 × 28,587.60
  4. Step 4: Simplify right side
    49,808.52x = 1,965,014,426.16
  5. Step 5: Solve for x
    x = 1,965,014,426.16/49,808.52
  6. Step 6: Final answer
    x = 39,451.37

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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.