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Finding the Fourth Proportional to 6,859.70, 9,466.86 and 4,171.97

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Solution

The fourth proportional to 6,859.70, 9,466.86 and 4,171.97 is: 5,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.70 : 9,466.86 = 4,171.97 : x
  2. Step 2: Convert to fraction form
    6,859.70/9,466.86 = 4,171.97/x
  3. Step 3: Cross multiply
    6,859.70x = 9,466.86 × 4,171.97
  4. Step 4: Simplify right side
    6,859.70x = 39,495,479.58
  5. Step 5: Solve for x
    x = 39,495,479.58/6,859.70
  6. Step 6: Final answer
    x = 5,757.61

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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.