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Finding the Fourth Proportional to 25,081.99, 34,612.65 and 13,751.51

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Solution

The fourth proportional to 25,081.99, 34,612.65 and 13,751.51 is: 18,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,081.99 : 34,612.65 = 13,751.51 : x
  2. Step 2: Convert to fraction form
    25,081.99/34,612.65 = 13,751.51/x
  3. Step 3: Cross multiply
    25,081.99x = 34,612.65 × 13,751.51
  4. Step 4: Simplify right side
    25,081.99x = 475,976,029.54
  5. Step 5: Solve for x
    x = 475,976,029.54/25,081.99
  6. Step 6: Final answer
    x = 18,976.81

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