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Finding the Fourth Proportional to 18,694.76, 25,800.30 and 10,739.54

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Solution

The fourth proportional to 18,694.76, 25,800.30 and 10,739.54 is: 14,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694.76 : 25,800.30 = 10,739.54 : x
  2. Step 2: Convert to fraction form
    18,694.76/25,800.30 = 10,739.54/x
  3. Step 3: Cross multiply
    18,694.76x = 25,800.30 × 10,739.54
  4. Step 4: Simplify right side
    18,694.76x = 277,083,418.36
  5. Step 5: Solve for x
    x = 277,083,418.36/18,694.76
  6. Step 6: Final answer
    x = 14,821.45

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1.5x scale

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.