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Finding the Fourth Proportional to 8,996.67, 12,416.52 and 5,169.50

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Solution

The fourth proportional to 8,996.67, 12,416.52 and 5,169.50 is: 7,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.67 : 12,416.52 = 5,169.50 : x
  2. Step 2: Convert to fraction form
    8,996.67/12,416.52 = 5,169.50/x
  3. Step 3: Cross multiply
    8,996.67x = 12,416.52 × 5,169.50
  4. Step 4: Simplify right side
    8,996.67x = 64,187,138.06
  5. Step 5: Solve for x
    x = 64,187,138.06/8,996.67
  6. Step 6: Final answer
    x = 7,134.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.