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Finding the Fourth Proportional to 6,696.17, 9,240.30 and 3,934.34

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Solution

The fourth proportional to 6,696.17, 9,240.30 and 3,934.34 is: 5,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,696.17 : 9,240.30 = 3,934.34 : x
  2. Step 2: Convert to fraction form
    6,696.17/9,240.30 = 3,934.34/x
  3. Step 3: Cross multiply
    6,696.17x = 9,240.30 × 3,934.34
  4. Step 4: Simplify right side
    6,696.17x = 36,354,481.90
  5. Step 5: Solve for x
    x = 36,354,481.90/6,696.17
  6. Step 6: Final answer
    x = 5,429.15

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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.