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Finding the Fourth Proportional to 11,699.08, 17,515.98 and 7,993.48

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Solution

The fourth proportional to 11,699.08, 17,515.98 and 7,993.48 is: 11,967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.08 : 17,515.98 = 7,993.48 : x
  2. Step 2: Convert to fraction form
    11,699.08/17,515.98 = 7,993.48/x
  3. Step 3: Cross multiply
    11,699.08x = 17,515.98 × 7,993.48
  4. Step 4: Simplify right side
    11,699.08x = 140,013,635.81
  5. Step 5: Solve for x
    x = 140,013,635.81/11,699.08
  6. Step 6: Final answer
    x = 11,967.92

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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.