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Finding the Fourth Proportional to 18,699.94, 25,806.72 and 10,744.66

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Solution

The fourth proportional to 18,699.94, 25,806.72 and 10,744.66 is: 14,828.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.94 : 25,806.72 = 10,744.66 : x
  2. Step 2: Convert to fraction form
    18,699.94/25,806.72 = 10,744.66/x
  3. Step 3: Cross multiply
    18,699.94x = 25,806.72 × 10,744.66
  4. Step 4: Simplify right side
    18,699.94x = 277,284,432.12
  5. Step 5: Solve for x
    x = 277,284,432.12/18,699.94
  6. Step 6: Final answer
    x = 14,828.09

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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.