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Finding the Fourth Proportional to 18,751.65, 25,877.25 and 10,790.97

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Solution

The fourth proportional to 18,751.65, 25,877.25 and 10,790.97 is: 14,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751.65 : 25,877.25 = 10,790.97 : x
  2. Step 2: Convert to fraction form
    18,751.65/25,877.25 = 10,790.97/x
  3. Step 3: Cross multiply
    18,751.65x = 25,877.25 × 10,790.97
  4. Step 4: Simplify right side
    18,751.65x = 279,240,628.43
  5. Step 5: Solve for x
    x = 279,240,628.43/18,751.65
  6. Step 6: Final answer
    x = 14,891.52

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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.