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Finding the Fourth Proportional to 18,698.27, 25,801.94 and 10,739.75

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Solution

The fourth proportional to 18,698.27, 25,801.94 and 10,739.75 is: 14,819.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698.27 : 25,801.94 = 10,739.75 : x
  2. Step 2: Convert to fraction form
    18,698.27/25,801.94 = 10,739.75/x
  3. Step 3: Cross multiply
    18,698.27x = 25,801.94 × 10,739.75
  4. Step 4: Simplify right side
    18,698.27x = 277,106,282.95
  5. Step 5: Solve for x
    x = 277,106,282.95/18,698.27
  6. Step 6: Final answer
    x = 14,819.89

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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.