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Finding the Fourth Proportional to 8,001.68, 11,992.60 and 4,531.76

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Solution

The fourth proportional to 8,001.68, 11,992.60 and 4,531.76 is: 6,792.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.68 : 11,992.60 = 4,531.76 : x
  2. Step 2: Convert to fraction form
    8,001.68/11,992.60 = 4,531.76/x
  3. Step 3: Cross multiply
    8,001.68x = 11,992.60 × 4,531.76
  4. Step 4: Simplify right side
    8,001.68x = 54,347,584.98
  5. Step 5: Solve for x
    x = 54,347,584.98/8,001.68
  6. Step 6: Final answer
    x = 6,792.02

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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.