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Finding the Fourth Proportional to 8,676.15, 11,976.02 and 5,273.15

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Solution

The fourth proportional to 8,676.15, 11,976.02 and 5,273.15 is: 7,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.15 : 11,976.02 = 5,273.15 : x
  2. Step 2: Convert to fraction form
    8,676.15/11,976.02 = 5,273.15/x
  3. Step 3: Cross multiply
    8,676.15x = 11,976.02 × 5,273.15
  4. Step 4: Simplify right side
    8,676.15x = 63,151,350.76
  5. Step 5: Solve for x
    x = 63,151,350.76/8,676.15
  6. Step 6: Final answer
    x = 7,278.73

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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.