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Finding the Fourth Proportional to 53,953.73, 80,953.91 and 28,964.58

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Solution

The fourth proportional to 53,953.73, 80,953.91 and 28,964.58 is: 43,459.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,953.73 : 80,953.91 = 28,964.58 : x
  2. Step 2: Convert to fraction form
    53,953.73/80,953.91 = 28,964.58/x
  3. Step 3: Cross multiply
    53,953.73x = 80,953.91 × 28,964.58
  4. Step 4: Simplify right side
    53,953.73x = 2,344,795,857.68
  5. Step 5: Solve for x
    x = 2,344,795,857.68/53,953.73
  6. Step 6: Final answer
    x = 43,459.39

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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.