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Finding the Fourth Proportional to 8,481.05, 11,701.76 and 5,079.18

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Solution

The fourth proportional to 8,481.05, 11,701.76 and 5,079.18 is: 7,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.05 : 11,701.76 = 5,079.18 : x
  2. Step 2: Convert to fraction form
    8,481.05/11,701.76 = 5,079.18/x
  3. Step 3: Cross multiply
    8,481.05x = 11,701.76 × 5,079.18
  4. Step 4: Simplify right side
    8,481.05x = 59,435,319.96
  5. Step 5: Solve for x
    x = 59,435,319.96/8,481.05
  6. Step 6: Final answer
    x = 7,008.02

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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.