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Finding the Fourth Proportional to 54,992.38, 82,488.56 and 19,932.07

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Solution

The fourth proportional to 54,992.38, 82,488.56 and 19,932.07 is: 29,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,992.38 : 82,488.56 = 19,932.07 : x
  2. Step 2: Convert to fraction form
    54,992.38/82,488.56 = 19,932.07/x
  3. Step 3: Cross multiply
    54,992.38x = 82,488.56 × 19,932.07
  4. Step 4: Simplify right side
    54,992.38x = 1,644,167,389.51
  5. Step 5: Solve for x
    x = 1,644,167,389.51/54,992.38
  6. Step 6: Final answer
    x = 29,898.10

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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.