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Finding the Fourth Proportional to 18,791.01, 25,904.48 and 15,248.07

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Solution

The fourth proportional to 18,791.01, 25,904.48 and 15,248.07 is: 21,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.01 : 25,904.48 = 15,248.07 : x
  2. Step 2: Convert to fraction form
    18,791.01/25,904.48 = 15,248.07/x
  3. Step 3: Cross multiply
    18,791.01x = 25,904.48 × 15,248.07
  4. Step 4: Simplify right side
    18,791.01x = 394,993,248.11
  5. Step 5: Solve for x
    x = 394,993,248.11/18,791.01
  6. Step 6: Final answer
    x = 21,020.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.