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Finding the Fourth Proportional to 18,001.52, 27,016.14 and 11,759.84

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Solution

The fourth proportional to 18,001.52, 27,016.14 and 11,759.84 is: 17,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.52 : 27,016.14 = 11,759.84 : x
  2. Step 2: Convert to fraction form
    18,001.52/27,016.14 = 11,759.84/x
  3. Step 3: Cross multiply
    18,001.52x = 27,016.14 × 11,759.84
  4. Step 4: Simplify right side
    18,001.52x = 317,705,483.82
  5. Step 5: Solve for x
    x = 317,705,483.82/18,001.52
  6. Step 6: Final answer
    x = 17,648.81

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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.