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Finding the Fourth Proportional to 6,157.92, 8,498.90 and 3,917.46

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Solution

The fourth proportional to 6,157.92, 8,498.90 and 3,917.46 is: 5,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,157.92 : 8,498.90 = 3,917.46 : x
  2. Step 2: Convert to fraction form
    6,157.92/8,498.90 = 3,917.46/x
  3. Step 3: Cross multiply
    6,157.92x = 8,498.90 × 3,917.46
  4. Step 4: Simplify right side
    6,157.92x = 33,294,081.21
  5. Step 5: Solve for x
    x = 33,294,081.21/6,157.92
  6. Step 6: Final answer
    x = 5,406.71

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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.