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Finding the Fourth Proportional to 11,911.90, 17,863.27 and 5,667.10

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Solution

The fourth proportional to 11,911.90, 17,863.27 and 5,667.10 is: 8,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.90 : 17,863.27 = 5,667.10 : x
  2. Step 2: Convert to fraction form
    11,911.90/17,863.27 = 5,667.10/x
  3. Step 3: Cross multiply
    11,911.90x = 17,863.27 × 5,667.10
  4. Step 4: Simplify right side
    11,911.90x = 101,232,937.42
  5. Step 5: Solve for x
    x = 101,232,937.42/11,911.90
  6. Step 6: Final answer
    x = 8,498.47

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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.