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Finding the Fourth Proportional to 6,910.87, 9,536.16 and 4,223.44

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Solution

The fourth proportional to 6,910.87, 9,536.16 and 4,223.44 is: 5,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.87 : 9,536.16 = 4,223.44 : x
  2. Step 2: Convert to fraction form
    6,910.87/9,536.16 = 4,223.44/x
  3. Step 3: Cross multiply
    6,910.87x = 9,536.16 × 4,223.44
  4. Step 4: Simplify right side
    6,910.87x = 40,275,391.71
  5. Step 5: Solve for x
    x = 40,275,391.71/6,910.87
  6. Step 6: Final answer
    x = 5,827.83

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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.