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Finding the Fourth Proportional to 8,693.50, 11,997.27 and 4,917.23

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Solution

The fourth proportional to 8,693.50, 11,997.27 and 4,917.23 is: 6,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.50 : 11,997.27 = 4,917.23 : x
  2. Step 2: Convert to fraction form
    8,693.50/11,997.27 = 4,917.23/x
  3. Step 3: Cross multiply
    8,693.50x = 11,997.27 × 4,917.23
  4. Step 4: Simplify right side
    8,693.50x = 58,993,335.96
  5. Step 5: Solve for x
    x = 58,993,335.96/8,693.50
  6. Step 6: Final answer
    x = 6,785.91

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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.