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Finding the Fourth Proportional to 6,892.19, 9,512.44 and 3,907.44

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Solution

The fourth proportional to 6,892.19, 9,512.44 and 3,907.44 is: 5,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.19 : 9,512.44 = 3,907.44 : x
  2. Step 2: Convert to fraction form
    6,892.19/9,512.44 = 3,907.44/x
  3. Step 3: Cross multiply
    6,892.19x = 9,512.44 × 3,907.44
  4. Step 4: Simplify right side
    6,892.19x = 37,169,278.79
  5. Step 5: Solve for x
    x = 37,169,278.79/6,892.19
  6. Step 6: Final answer
    x = 5,392.96

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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.