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Finding the Fourth Proportional to 58,273.82, 87,398.02 and 20,836.48

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Solution

The fourth proportional to 58,273.82, 87,398.02 and 20,836.48 is: 31,250.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,273.82 : 87,398.02 = 20,836.48 : x
  2. Step 2: Convert to fraction form
    58,273.82/87,398.02 = 20,836.48/x
  3. Step 3: Cross multiply
    58,273.82x = 87,398.02 × 20,836.48
  4. Step 4: Simplify right side
    58,273.82x = 1,821,067,095.77
  5. Step 5: Solve for x
    x = 1,821,067,095.77/58,273.82
  6. Step 6: Final answer
    x = 31,250.18

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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.