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Finding the Fourth Proportional to 75,287, 112,932.84 and 27,913.88

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Solution

The fourth proportional to 75,287, 112,932.84 and 27,913.88 is: 41,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,287 : 112,932.84 = 27,913.88 : x
  2. Step 2: Convert to fraction form
    75,287/112,932.84 = 27,913.88/x
  3. Step 3: Cross multiply
    75,287x = 112,932.84 × 27,913.88
  4. Step 4: Simplify right side
    75,287x = 3,152,393,743.82
  5. Step 5: Solve for x
    x = 3,152,393,743.82/75,287
  6. Step 6: Final answer
    x = 41,871.69

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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.