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Finding the Fourth Proportional to 23,698.38, 35,481.90 and 11,987.10

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Solution

The fourth proportional to 23,698.38, 35,481.90 and 11,987.10 is: 17,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,698.38 : 35,481.90 = 11,987.10 : x
  2. Step 2: Convert to fraction form
    23,698.38/35,481.90 = 11,987.10/x
  3. Step 3: Cross multiply
    23,698.38x = 35,481.90 × 11,987.10
  4. Step 4: Simplify right side
    23,698.38x = 425,325,083.49
  5. Step 5: Solve for x
    x = 425,325,083.49/23,698.38
  6. Step 6: Final answer
    x = 17,947.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.