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Finding the Fourth Proportional to 2,667.51, 4,001.81 and 936.27

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Solution

The fourth proportional to 2,667.51, 4,001.81 and 936.27 is: 1,404.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,667.51 : 4,001.81 = 936.27 : x
  2. Step 2: Convert to fraction form
    2,667.51/4,001.81 = 936.27/x
  3. Step 3: Cross multiply
    2,667.51x = 4,001.81 × 936.27
  4. Step 4: Simplify right side
    2,667.51x = 3,746,769.97
  5. Step 5: Solve for x
    x = 3,746,769.97/2,667.51
  6. Step 6: Final answer
    x = 1,404.59

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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.