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Finding the Fourth Proportional to 53,868.60, 80,751.96 and 18,798.84

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Solution

The fourth proportional to 53,868.60, 80,751.96 and 18,798.84 is: 28,180.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,868.60 : 80,751.96 = 18,798.84 : x
  2. Step 2: Convert to fraction form
    53,868.60/80,751.96 = 18,798.84/x
  3. Step 3: Cross multiply
    53,868.60x = 80,751.96 × 18,798.84
  4. Step 4: Simplify right side
    53,868.60x = 1,518,043,175.73
  5. Step 5: Solve for x
    x = 1,518,043,175.73/53,868.60
  6. Step 6: Final answer
    x = 28,180.48

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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.